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What is IO Genix Casein?
IO Genix Casein is a powdered micellar casein, providing 23 g of protein per 30 g serving. The raw material comes from New Zealand's Fonterra, one of the largest dairy processors in the world. The 900 g tub holds 30 servings, which is a month at one serving a day.
Micellar casein is not a slowed-down whey: it is the other milk protein, the one that makes up roughly 80 % of milk's protein fraction. What sets it apart is physical rather than chemical. On contact with stomach acid it forms a gel that empties slowly, which spreads the release of amino acids over several hours, where a whey is absorbed in an hour and a half. That is exactly what you want for the long overnight gap.
The flavours listed are Intense Chocolate and Original Black Cookies. The rest of the Spanish range appears in our IO Genix aisle.
What does a 30 g serving contain?
| Values | Per 30 g serving | Per 100 g | % NRV |
|---|---|---|---|
| Protein | 23 g | about 76.7 g | — |
| Carbohydrate | 1.5 g | 5 g | — |
| Fat | 0.8 g | about 2.7 g | — |
| Fibre | 0.2 g | about 0.7 g | — |
| Sodium | 180 mg | 600 mg | — |
| Calcium | 450 mg | 1,500 mg | 56 % |
| Vitamin B6 | quantity not disclosed | — | — |
| DigeZyme® | quantity not disclosed | — | — |
The per-100 g values are calculated from the manufacturer's declaration for a 30 g serving. Two caveats deserve to be set out in black and white.
First, the manufacturer does not publish the energy value of its product in the information available to us. We will not invent it; the label on the tub you receive is required to carry it.
Second, the published amino acid profile is arithmetically impossible: it states 20.1 g of BCAAs and 20.4 g of glutamine "per serving", which would make 40.5 g of amino acids in a serving that contains only 23 g in total. Those values are most likely expressed per 100 g of protein, but we will not decide that on the manufacturer's behalf and we would rather reproduce none of these figures than publish false ones. It is a point we have raised with them.
23 g of protein for 30 g of powder works out at 76.7 % — a very good rate for a casein, most of them sitting between 70 and 78 %. The manufacturer for its part states 75 %: the gap is minor and comes from rounding, but we would rather flag it than ignore it.
The figure worth pausing on is the 450 mg of calcium per serving, or 56 % of the daily reference value. This is not an addition: casein naturally carries milk's calcium, in the form of phosphate bound to the micelles. An evening serving therefore covers more than half of the daily calcium requirement, and calcium contributes to normal muscle function and to the maintenance of normal bones. It is the only genuinely quantifiable nutritional argument on this page, and it is a sound one.
The 1.5 g of carbohydrate and 0.8 g of fat per serving are low, which leaves a very clean shake, somewhere around a hundred kilocalories. That is consistent with the main use: an evening serving, when you no longer want to add anything to the day.
Lastly, the formula contains DigeZyme®, a complex of five enzymes — amylase, protease, lactase, lipase and cellulase — whose quantity is not published. The theoretical benefit is digestion of the powder, and lactase in particular for the residual lactose fraction. We cannot say more than that without a dose, and no claim is authorised for this complex. If digestion is your main problem, our digestive enzymes aisle offers products dosed for exactly that.
Ingredient list
Fonterra micellar casein (MILK), magnesium citrate, L-glutamine, cocoa powder, flavourings, emulsifier (SOYA lecithin), L-arginine HCl, L-ornithine HCl, L-lysine HCl, sweeteners (sucralose and sodium saccharin), DigeZyme® (multi-enzyme complex based on amylase, protease, lactase, lipase and cellulase) and vitamin B6 (pyridoxine hydrochloride). Contains MILK and SOYA lecithin. Possible traces of GLUTEN (OATS), EGG, FISH, NUTS and PEANUTS.
How do you take IO Genix Casein?
Serving: 30 g, that is one of the included scoops. Liquid: 200 to 250 ml of water or skimmed milk. Timing: 45 minutes before bed, or between two widely spaced meals. Frequency: one serving a day. Duration: no course duration, use is ongoing.
A shaker will do, but a blender gives a far better result: casein is thicker than a whey and lumps easily if you pour the powder in before the liquid. The order matters — liquid first, powder second.
Do not use hot water. Heat denatures the protein and turns the shake into something grainy and unpleasant. It is the number one cause of disappointment with a casein, and it is settled in one sentence.
A tip we hand out systematically across the counter: with only 100 ml of liquid and a spell in the fridge, the same serving takes on the texture of a dessert cream you eat with a spoon. For an evening serving that changes everything: it becomes a dessert rather than a shake, and it solves the problem for those who have no wish to drink half a litre before going to bed.
Casein combines without difficulty with a whey isolate taken at another point in the day: one after training, the other in the evening. That is not redundancy, it is two different speeds for two different needs.
Who is this casein right for, and who is it not right for?
It suits someone who eats dinner early and goes to bed late, someone who struggles to hit their protein target across the day, and someone looking for a filling serving at the end of the day. It also suits a calorie deficit, because a thick shake sits in the stomach far longer than a whey.
It contains milk and soya lecithin, which rules it out for anyone allergic to either of those two ingredients. Traces of gluten, egg, fish, nuts and peanuts are also flagged. It is not recommended for children, or for women who are pregnant or breastfeeding.
It is not suitable for the most sensitive lactose-intolerant users. Micellar casein contains little of it, and the presence of lactase in the DigeZyme® complex helps, but "little" is not "none at all". With a marked intolerance, a plant protein or a heavily filtered isolate remains safer.
What you should not expect from it: it does not build muscle overnight, and the idea that casein "protects against night-time catabolism" is a marketing line more than a demonstrated result. What it actually does is add 23 g of quality protein to a day that is short of it, at a moment when you are no longer hungry. That is concrete, it is useful, and it is enough to justify the purchase — but if your daily protein intake is already met, the additional benefit is slight.
Casein or whey for the evening serving?
It is the most common question in the protein aisle, and the answer is not the same for everyone.
A whey is absorbed quickly, with a peak of amino acids within the hour. It is the better choice after training, or when you want a light shake that does not sit heavily on the stomach. In the evening, its weakness is mechanical: the peak falls away within two hours, and there are seven hours of night left behind it.
Casein does the opposite. It rises less high, but it holds for several hours, and it is far more filling. It is the better choice for the bedtime serving, for a day with a long gap between two meals, or for someone who gets hungry in the evening and wants to avoid snacking. Its weakness is the texture: thicker, heavier, and noticeably less pleasant than whey for anyone who does not care for it.
If you are only going to buy one tub, buy an all-round protein. Casein is a second-line product: it makes sense once the first is already in place and you are looking to cover a specific slot.
Frequently asked questions
How many servings in a 900 g tub?
Thirty, at 30 g per serving, which is a month at one serving a day. It is a size consistent with the product's main use: an evening serving, every evening. If you only use it on training days, the tub will obviously last longer.
Can it be mixed with milk?
Yes, and it markedly improves both the taste and the texture. Skimmed milk adds about 5 g of protein and around ten grams of carbohydrate per 250 ml, which remains reasonable in the evening. With water, the shake is lighter and lower in calories, but also blander.
Why should you not use hot water?
Because heat denatures the proteins and makes the casein coagulate, so it turns grainy and unpleasant in the mouth. The nutritional content is not destroyed for all that, but the shake becomes hard to finish. Cold or room-temperature water only.
How do you get a dessert-cream texture?
Use only 100 ml of liquid instead of 250, mix thoroughly, then leave it in the fridge for thirty minutes. The casein swells and takes on a pudding-like consistency you eat with a spoon. It is the best use of the product for those who dislike drinking before sleep.
Is casein suitable for lactose-intolerant users?
Partly. It contains far less of it than a whey concentrate, and the lactase in the DigeZyme® complex breaks down part of what remains. That is enough for most moderate intolerances, but not for the more marked ones. If in doubt, start with a half serving.
Can it be taken after training?
Nothing forbids it, but that is not its territory. After a session, a fast-absorbing protein fits the moment better. Keep casein for the evening or for long gaps: that is where it brings something a whey cannot.
Why is there magnesium citrate in the list?
It appears second in the ingredients, which suggests a not insignificant quantity, but the manufacturer does not publish the dose. We therefore cannot state anything about its contribution or make any claim. If magnesium is what you are after, a dedicated product with a stated dose remains the right choice.
Where to buy IO Genix Casein?
The flavours can be ordered from this page, and we ship throughout France and Europe. At the Vendargues shop, about ten minutes from Montpellier, this is the product we recommend to those who tell us they get hungry at 10 pm: a casein prepared with a thick texture solves that problem better than any appetite suppressant. The rest of the protein aisle can be browsed in our sports nutrition range.
What is IO Genix Casein Cream?
IO Genix Casein Cream is a micellar casein powder to which the manufacturer has added crunchy pieces distributed through the tub. A 30 g scoop provides 22 g of protein for 115 kcal. The 900 g tub contains exactly 30 scoops, and the flavours on offer include Nutchoc and Salted Peanut.
Casein makes up roughly 80% of milk protein. Its distinctive feature is physical before it is nutritional: on contact with the acidity of the stomach, it forms a gel that dissolves slowly. The amino acids are therefore released gradually, over several hours, whereas a whey is absorbed in under an hour. That is why it is traditionally placed in the evening rather than around the session.
This product differs from classic casein on one simple point: it is designed to be eaten with a spoon as much as drunk from a shaker. With little liquid it gives a thick cream; the crunchy pieces stay crunchy. The rest of the Spanish range is in our IO Genix section, and the other products in the category in our caseins section.
What does a scoop of Casein Cream contain?
| Values | Per 100 g | Per 30 g scoop | % NRV per scoop |
|---|---|---|---|
| Energy | 1,603 kJ / 383 kcal | 481 kJ / 115 kcal | — |
| Fat | 6.0 g | 1.8 g | — |
| Carbohydrate | 10.7 g | 3.2 g | — |
| Dietary fibre | 1.7 g | 0.5 g | — |
| Protein | 73.3 g | 22 g | — |
| Salt | 0.5 g | 0.15 g | — |
| Calcium | 800 mg | 240 mg | 30% |
| Vitamin B6 | 1.4 mg | 0.42 mg | 30% |
The per 100 g column is calculated from the per-scoop values published by the manufacturer. Two lines are missing from the manufacturer's data and we will not invent them: the saturates content and the sugars content are not disclosed. The label on the tub you receive is the definitive reference, all the more so as the composition of the pieces varies from one flavour to another.
22 g of protein for 115 kcal is an excellent ratio for a product eaten like a dessert. For context: a shop-bought fruit yoghurt runs at around 4 g of protein per 100 kcal. Here you are more than five times better off, which changes everything if you are trying to hold a high protein total without blowing up your calories.
The two micronutrients are worth pausing on, because they are genuinely dosed and not merely sprinkled in. With 240 mg of calcium, one scoop covers 30% of the nutrient reference value: calcium is needed for the maintenance of normal bones and contributes to normal muscle function. Nothing surprising for a dairy product, but it is a real bonus. Vitamin B6, at 0.42 mg, likewise covers 30% of the reference value and contributes to normal protein and glycogen metabolism — the addition is consistent with a protein product.
On the protein itself, the only wording authorised in Europe is this one: protein contributes to a growth in and the maintenance of muscle mass. It is true, it is enough, and it calls for no flights of rhetoric. The earlier version of this page spoke of a night-time anabolic window, anti-catabolic action, prolonged satiety and an enzyme complex presented as a digestive advantage: none of those statements is authorised or verifiable, and all have been removed.
Ingredients list
Micellar casein (MILK), Lactomin whey protein concentrate (MILK), crunchy pieces varying by flavour, natural flavourings, DigeZyme enzyme complex (amylase, protease, lactase, lipase, cellulase), sweetener (stevia extract), vitamin B6 (pyridoxine hydrochloride), emulsifier (sunflower lecithin).
Contains MILK. May contain traces of GLUTEN, EGGS, SOYA, NUTS and PEANUTS. The composition of the crunchy pieces changes according to the flavour: check the label on the tub you receive if you have an allergy.
How do you take Casein Cream?
Dose: 30 g, or one scoop. Liquid: 200 to 250 ml for a shaker, 100 ml for a cream texture. Timing: 45 minutes before bed, as a snack, or after training. Frequency: one scoop a day, do not exceed. Duration: the manufacturer recommends daily use for at least six weeks.
Preparing it as a cream is the real point of the product, and that is how it should be judged. With 100 ml of liquid and fifteen minutes in the fridge, the powder sets and gives a thick dessert to be eaten with a spoon. With 250 ml you get a classic shake, decent but nothing remarkable — you may as well take a standard casein, which is cheaper. Buy this product for the cream, not for the shake.
The liquid is chosen according to your goal. With water, you stay at 115 kcal. With skimmed milk, reckon on another hundred calories or so and a higher protein intake. With a plant-based drink, the texture is thinner and the result often less firm.
A shaker is enough, but a blender gives a more uniform texture for the cream version. The crunchy pieces do not dissolve; that is normal and that is the point. Close the tub properly: moisture softens them, and a badly closed tub ends up with soggy pieces.
One scoop in the evening does not replace a meal. It completes a day whose protein total matters more than the timing of each intake — that is the best-supported view today, and it is better said than keeping alive the idea of a magic window. If what you need is a fast intake after the session, whey isolate is what to turn to.
Who is Casein Cream for, and who is it not for?
It suits the person who cracks in the evening in front of a dessert and is looking for an alternative that does not ruin their day. It also suits anyone who struggles to reach their protein total, people in a calorie deficit who want a filling and indulgent product, and those who are tired of shakes.
It is not for people who are lactose intolerant or allergic to milk proteins, since casein and whey are both derived from milk. Nor is it for vegans. The manufacturer does not recommend it for children under 12, asks pregnant and breastfeeding women as well as people on medical treatment to seek professional advice, and sets the daily dose at 30 g.
Nor is it for you if you are looking for a fast-absorbing protein around the session: that is not what a casein does, and the slowness that is its strength in the evening becomes a drawback at that moment.
What not to expect from it: casein does not make you lose weight, burns nothing during the night and does not replace a complete meal. Nor is it a digestive product: the presence of enzymes in the formula is not a claimable digestive benefit, and if that is your need, our digestive enzymes section deals with the subject in its own right.
Evening casein or whey, which should you choose?
Both come from milk, they do not behave in the same way, and the choice is simpler than people think.
Whey is absorbed quickly, in under an hour. It is the better choice around training, at breakfast, or whenever the point is to deliver amino acids fast. It is also thinner, and therefore easier to drink in large quantities.
Casein forms a gel in the stomach and digests slowly. It is the better choice in the evening, as a snack that has to last, or when you want something substantial rather than a drink. With this particular product there is an added argument that whey will never have: the dessert texture and the crunchy pieces, which change the experience entirely.
If your goal is bulking, neither is enough on its own: it is the calorie total that decides, and our bulking section answers that question better. And if you are simply after a protein snack to take with you rather than a powder to prepare, have a look at our protein snacks.
Frequently asked questions
Do the crunchy pieces stay crunchy?
Yes, in the preparation, since they do not dissolve. They do soften, however, if the tub takes in moisture: close it carefully and keep it dry. That is the only storage precaution that really matters with this product.
How many scoops are there in the 900 g tub?
Exactly 30 scoops of 30 g. At one scoop a day, the tub covers a full month, which corresponds to half of the six-week period of use the manufacturer recommends.
Can it be made into a pudding?
That is in fact its best use: 30 g of powder in 100 ml of liquid, fifteen minutes in the fridge, and you get a thick cream to be eaten with a spoon. With 250 ml you fall back on an ordinary shake and the point of the product is largely lost.
Is it suitable for people who are lactose intolerant?
No. Micellar casein and whey concentrate are both derived from milk and contain lactose. If that is your problem, a whey isolate, whose lactose content is far lower, is a much more suitable choice.
Which flavours are available?
The flavours listed by the manufacturer, including Nutchoc and Salted Peanut. The complete, up-to-date list is that of the variants offered on this page: that is the definitive one, as the manufacturer's documentation is not always in step with deliveries.
Does it really have to be taken before sleeping?
That is the most logical moment, 45 minutes before bed, because its slow digestion lends itself to it. But your day's protein total matters more than the hour of each intake. If the evening does not suit you, an afternoon snack works very well.
Can it be cooked with?
It stands up poorly to cooking, as all caseins do: it thickens too much and the crunchy pieces lose their point. Keep it for cold preparations. For protein baking, a plain whey or a purpose-made powder behaves far better.
Where can you buy IO Genix Casein Cream?
The 900 g tub can be ordered from this page, and we ship throughout France and Europe. At the Vendargues shop, about ten minutes from Montpellier, this is the product we recommend to those who tell us they hold their diet together all day and let go of it all at ten in the evening: a 115 kcal cream settles the problem better than a resolution. The rest of the section can be browsed in our sports nutrition range.
Qu'est-ce que l'Evofusion d'Evogen ?
L'Evofusion est le mélange protéiné d'Evogen, la marque de Hany Rambod, préparateur de bodybuilding professionnel et créateur de la méthode FST-7. Là où l'IsoJect joue la carte d'une protéine unique et rapide, l'Evofusion fait exactement l'inverse : il en associe trois.
La formule réunit un concentré de protéine de lactosérum, un isolat de protéine de lactosérum et de la caséine micellaire. Le fabricant y ajoute de la lactase et de la protéase, deux enzymes, ainsi que de l'huile MCT en poudre.
Les protéines contribuent au développement et au maintien de la masse musculaire.
Pourquoi trois protéines plutôt qu'une ?
Parce qu'elles ne sont pas digérées à la même vitesse, et que c'est précisément l'intérêt du produit.
L'isolat est la fraction la plus rapide : filtré plus finement, il arrive vite. Le concentré suit, à un rythme intermédiaire. La caséine micellaire, elle, forme un gel au contact de l'acidité de l'estomac et libère ses acides aminés lentement, sur plusieurs heures.
Le résultat est un apport qui s'étale au lieu de monter d'un coup puis de retomber. C'est ce qui distingue ce type de formule d'une whey isolate classique, dont tout l'intérêt est au contraire d'être rapide.
Questions fréquentes
Quelles protéines contient l'Evofusion ?
Trois : un concentré de protéine de lactosérum, un isolat de protéine de lactosérum et de la caséine micellaire. S'y ajoutent deux enzymes, la lactase et la protéase, ainsi que de l'huile MCT en poudre.
Quelle différence avec l'IsoJect ?
L'IsoJect est un isolat seul, donc rapide : son terrain est l'après-séance et les apports protéiques à moindre coût calorique. L'Evofusion mélange trois sources à vitesses différentes, pour un apport qui s'étale sur plusieurs heures : son terrain, ce sont les intervalles longs entre deux repas et la prise du soir.
Pourquoi y a-t-il de la lactase dedans ?
La lactase est l'enzyme qui dégrade le lactose. Un concentré de whey en contient plus qu'un isolat, et cet ajout vise le confort digestif. Attention toutefois : cela ne fait pas du produit une protéine sans lactose, et il ne convient pas en cas d'allergie aux protéines de lait.
Quand faut-il le prendre ?
Sur les intervalles longs : collation de milieu d'après-midi, prise du soir, ou journée où les repas sautent. Pour un shaker strictement post-séance, un isolat seul est plus logique et revient moins cher au gramme de protéine.
Le pot fait-il toujours le même poids ?
Non, il varie de 1 820 g à 1 870 g selon la saveur, parce que le fabricant fixe le nombre de doses et non le poids net : la densité de la poudre change avec la recette. Le nombre de doses et le prix, eux, ne changent pas.
Quelles saveurs sont disponibles ?
Quatre : Chocolat Cacahuète, Cookies & Cream, Vanille Glacée et Chocolat Milkshake.
Peut-on le mélanger à de la créatine ?
Oui, sans interaction problématique connue. Ajouter sa dose de créatine monohydrate au shaker reste le moyen le plus simple de ne pas l'oublier, puisque c'est la régularité quotidienne qui compte sur cet ingrédient.
Convient-il en cas d'intolérance au lactose ?
La formule contient de la lactase, ce qui aide au confort digestif, mais elle reste construite sur des protéines de lait. En cas d'intolérance marquée, un isolat pauvre en lactose est un choix plus sûr : voyez notre rayon whey isolate.
Où acheter l'Evofusion ?
Vous pouvez le commander sur cette page, et nous expédions partout en France et en Europe. Cette référence est tenue en stock à l'entrepôt et n'est pas présentée en rayon à Vendargues : si vous souhaitez la voir en boutique, dites-le-nous à l'avance et nous la faisons venir.
Le reste de la sélection est dans notre rayon protéines, et la gamme complète de la marque sur notre page Evogen.
What is casein?
Milk contains two families of proteins: approximately 20% whey protein and approximately 80% casein. They contain the same amino acids but behave differently in the stomach: when it comes into contact with gastric acid, casein forms a gel that slowly breaks down. Amino acid release then extends over several hours, whereas whey is absorbed in about an hour.
Micellar or caseinate: they are not the same
Micellar casein is obtained by cold filtration: the natural structure of the protein is preserved, and with it, the slow behavior that makes it so valuable. Caseinate, on the other hand, is produced by acid precipitation followed by neutralization—cheaper, more soluble, but the micellar structure is lost, and digestion is accelerated. For nighttime use, micellar casein is what you should look for. Check the label: both are sold under the generic name "casein."
Casein and night: what it does and what it doesn't do
This is by far the most frequently asked question about this product, and it deserves a precise answer.
What it does
During the seven or eight hours of a night, no food intake occurs. A dose of casein taken before bed spreads the availability of amino acids over this period, instead of concentrating it in the first hour. Specifically, it helps to fill a gap in your daily protein total at a time when you are not eating.
What it doesn't do
Casein does not help with sleep. It is neither a sleeping pill nor a relaxant, and no such claim is permitted for this protein. If your problem is falling asleep, this is not the right section: look instead at melatonin, magnesium, or ZMA.
It also does not "make you gain weight overnight," contrary to what is sometimes read. A dose represents about a hundred calories, counted like any other.
What if you don't take it?
Honestly: if you are already meeting your daily protein intake and eating a proper meal in the evening, the additional gain is moderate. A bowl of quark or skyr plays the same role—they are also rich in casein. The advantage of powder is practical: the dosage is precise, digestion is light, and it can be prepared in thirty seconds.
Casein or whey: which one to choose?
- Around training — whey. Rapid assimilation is its forte.
- In the evening, or before a long period without eating — casein.
- As a satiating snack — casein, its thick texture keeps you feeling full longer.
- If you only take one — whey, more versatile.
The two are not mutually exclusive: many athletes keep whey around their workouts and casein in the evening. For mass gain, it adds calories without heaviness; for cutting, its satiating power helps to get through the evening.
How to take it
- Dose — 25 to 40 g, or one to two scoops depending on the brand.
- Time — thirty minutes before bed, or as a long snack between two spaced meals.
- Liquid — 300 to 400 ml. Casein thickens a lot: with too little water, you get a paste that is difficult to drink.
- Texture tip — let it sit for two minutes after shaking, the powder will finish hydrating, and lumps will disappear.
As a dessert, some caseins can be prepared with less liquid to obtain a spoonable cream — practical in the evening, and much more satisfying than a shaker.
Frequently Asked Questions
What is casein?
It is the main protein in milk: about 80% of milk proteins, the rest being whey. It is organized into micelles, spherical aggregates linked to calcium, which coagulate on contact with stomach acid — this is exactly what happens when milk curdles, and it is the very principle of cheese making. In powder form, it provides a slow-digesting protein, whose amino acids are released over five to seven hours. Same amino acid profile as whey, different speed: that's the whole distinction.
What is micellar casein?
It is casein in its native form, extracted from milk by cold filtration, without acid treatment. Its micelles remain intact, and it is this structure that forms a gel on contact with stomach acid before slowly breaking down. Caseinate, obtained by acid precipitation then neutralization, has lost this organization: more soluble, less thick, but digested faster. Both are sold under the generic name "casein," hence the importance of reading the composition line.
Why take casein?
For one solid reason: to cover a long period without food intake, primarily at night. It also serves as a satiating snack at the end of the day, where its thick texture is more filling than a liquid shake. Outside of these two uses, it has no advantage over whey, and if your evening meal is adequate and your protein quota is met, the additional gain remains moderate — a large bowl of quark plays the same role, for less money.
When to take casein?
In the evening, about thirty minutes before bed, or as a snack between very spaced meals — a work afternoon without a break, a long journey. These are the only periods where its release spread over five to seven hours offers something different from whey. Around training, it has no particular advantage: a fast-acting protein is more suitable. And if your daily protein intake is already met by meals, the timing of intake doesn't change much.
What is the best casein?
Three label lines differentiate two pots, and the brand is not one of them. First, the form: "micellar casein" in full letters, and not "calcium caseinate" or "sodium caseinate," otherwise the slow digestion — the product's sole interest — disappears. Then the protein content per 100g, to be read in this column and not in the dose column. Finally, the price per kilo of protein, and not per kilo of powder. Taste and texture also matter more than elsewhere: it's the thickest protein in the section, and the one most often abandoned at the back of a cupboard.
Does casein make you gain weight?
Not by itself, and especially not "because you take it in the evening": the body doesn't store calories differently after 8 p.m. A 30g dose provides about 110 to 120 kcal, counted like any other. You gain weight if your total daily intake exceeds your expenditure, not because of a particular food. Added to an already sufficient diet, it adds calories; substituted for a sugary dessert, it removes them. To gain weight deliberately, the mass gain section is for that.
When to take casein for weight loss?
Let's be frank: no specific time of day makes you lose weight, and casein has no fat-burning effect. What it can do during a calorie deficit is more modest and very real: it is very satiating, and the time it is most helpful is when you are most exposed to snacking — in practice, the evening, after dinner. Prepared thick, to be eaten with a spoon, it replaces a dessert for about 110 kcal. The result comes from the sustained deficit over time, not from the powder.
Which protein to choose for weight loss?
No protein powder makes you lose weight: it is the energy deficit that changes body composition. What proteins provide during this period is different and very real: for the same calories, they are more satiating than carbohydrates and fats, and they limit muscle mass loss when overall intake decreases. In this area, casein has a textural advantage — thick, it keeps you feeling full longer in the evening — while a whey isolate provides more protein for fewer calories. The rest of the process is detailed in our weight loss section.
Does casein present any danger?
For a healthy person, no: it's a milk protein, present in cheese and yogurts forever. Special cases are cow's milk protein allergy — different from lactose intolerance, and contraindicating the product regardless of its lactose content — and known kidney failure, which requires medical advice before increasing protein intake. A very generous dose taken with too little water can cause digestive discomfort: this is a preparation issue, not a product issue.
What foods contain casein?
All dairy products, since it represents about 80% of milk proteins. The most concentrated are quark, skyr, petit-suisse, and pressed cheeses. Two hundred to two hundred and fifty grams of quark provide a quantity of casein comparable to a dose of powder, for a lower price. The powder only has two advantages: precise dosage and lighter digestion in the evening. The Ciqual database provides protein content per food item.
Does casein contain lactose?
A little, generally less than one gram per serving for a filtered micellar, which is well below the threshold most intolerant people can tolerate. If you are very sensitive, a whey isolate or an egg protein remain safer. Not to be confused with cow's milk protein allergy: in this case, it is casein itself that is the cause.
How much protein do you need per day?
The ANSES recommends 0.83 g per kilogram of body weight per day for healthy adults. Sports nutrition guidelines place bodybuilders significantly higher, in a commonly cited range of 1.6 to 2.2 g per kilogram — the need depends on body mass and activity level, not gender. Distribute over three to four servings rather than concentrating everything in the evening. If meals are not enough, our proteins fill the gap.
What are the budget caseins worth?
The question to ask is not the price but the form: micellar or caseinate. Many inexpensive options are based on calcium or sodium caseinate, which is cheaper to produce and faster to digest—thus negating the product's main benefit. A cheap pot whose composition line indicates "caseinate" is actually an intermediate-speed protein sold as a slow protein. Check the composition, the protein content per 100g, and the price per kilo of protein: a properly labeled micellar is still the best buy, even if it costs a little more.
Where to buy casein?
Online on this page, with shipping throughout France and Europe, or in our Vendargues store, about ten minutes from Montpellier, where pickup is available within two hours. For this protein more than any other, buying in-store has a concrete advantage: texture and taste can be discussed before leaving with a kilogram pot, and it is the product in the section that is most often unused when chosen from a photo.
In stock in Vendargues, fifteen minutes from Montpellier
Our caseins are available at 285 Rue Des Portes Domitiennes in Vendargues. For a protein with such a distinct texture, testing it is important: it's the product most often found abandoned at the back of a cupboard when purchased based on a picture.
You can also order online: we ship throughout France and Europe.
We detail the composition of a micellar casein, its actual texture, and the best time to take it in our article on IO Genix casein.
Sources
- ANSES — Protein intake: consumption, quality, needs, and recommendations
- ANSES — Ciqual table of food nutritional composition
To be integrated into a varied and balanced diet and a healthy lifestyle.
Retrait au magasin sous 2 h
À Vendargues, près de Montpellier. Vous êtes prévenu dès que la commande est prête.
Commandé avant 14 h, expédié le jour même
Du lundi au samedi. Le délai d'acheminement appartient ensuite au transporteur.
Livraison offerte dès 69 €
En France métropolitaine, et dès 100 € en Europe. Modes et délais.
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Écrivez-nous ou passez au magasin : on connaît les produits qu'on vend.
What is casein?
Milk contains two families of proteins: approximately 20% whey protein and approximately 80% casein. They contain the same amino acids but behave differently in the stomach: when it comes into contact with gastric acid, casein forms a gel that slowly breaks down. Amino acid release then extends over several hours, whereas whey is absorbed in about an hour.
Micellar or caseinate: they are not the same
Micellar casein is obtained by cold filtration: the natural structure of the protein is preserved, and with it, the slow behavior that makes it so valuable. Caseinate, on the other hand, is produced by acid precipitation followed by neutralization—cheaper, more soluble, but the micellar structure is lost, and digestion is accelerated. For nighttime use, micellar casein is what you should look for. Check the label: both are sold under the generic name "casein."
Casein and night: what it does and what it doesn't do
This is by far the most frequently asked question about this product, and it deserves a precise answer.
What it does
During the seven or eight hours of a night, no food intake occurs. A dose of casein taken before bed spreads the availability of amino acids over this period, instead of concentrating it in the first hour. Specifically, it helps to fill a gap in your daily protein total at a time when you are not eating.
What it doesn't do
Casein does not help with sleep. It is neither a sleeping pill nor a relaxant, and no such claim is permitted for this protein. If your problem is falling asleep, this is not the right section: look instead at melatonin, magnesium, or ZMA.
It also does not "make you gain weight overnight," contrary to what is sometimes read. A dose represents about a hundred calories, counted like any other.
What if you don't take it?
Honestly: if you are already meeting your daily protein intake and eating a proper meal in the evening, the additional gain is moderate. A bowl of quark or skyr plays the same role—they are also rich in casein. The advantage of powder is practical: the dosage is precise, digestion is light, and it can be prepared in thirty seconds.
Casein or whey: which one to choose?
- Around training — whey. Rapid assimilation is its forte.
- In the evening, or before a long period without eating — casein.
- As a satiating snack — casein, its thick texture keeps you feeling full longer.
- If you only take one — whey, more versatile.
The two are not mutually exclusive: many athletes keep whey around their workouts and casein in the evening. For mass gain, it adds calories without heaviness; for cutting, its satiating power helps to get through the evening.
How to take it
- Dose — 25 to 40 g, or one to two scoops depending on the brand.
- Time — thirty minutes before bed, or as a long snack between two spaced meals.
- Liquid — 300 to 400 ml. Casein thickens a lot: with too little water, you get a paste that is difficult to drink.
- Texture tip — let it sit for two minutes after shaking, the powder will finish hydrating, and lumps will disappear.
As a dessert, some caseins can be prepared with less liquid to obtain a spoonable cream — practical in the evening, and much more satisfying than a shaker.
Frequently Asked Questions
What is casein?
It is the main protein in milk: about 80% of milk proteins, the rest being whey. It is organized into micelles, spherical aggregates linked to calcium, which coagulate on contact with stomach acid — this is exactly what happens when milk curdles, and it is the very principle of cheese making. In powder form, it provides a slow-digesting protein, whose amino acids are released over five to seven hours. Same amino acid profile as whey, different speed: that's the whole distinction.
What is micellar casein?
It is casein in its native form, extracted from milk by cold filtration, without acid treatment. Its micelles remain intact, and it is this structure that forms a gel on contact with stomach acid before slowly breaking down. Caseinate, obtained by acid precipitation then neutralization, has lost this organization: more soluble, less thick, but digested faster. Both are sold under the generic name "casein," hence the importance of reading the composition line.
Why take casein?
For one solid reason: to cover a long period without food intake, primarily at night. It also serves as a satiating snack at the end of the day, where its thick texture is more filling than a liquid shake. Outside of these two uses, it has no advantage over whey, and if your evening meal is adequate and your protein quota is met, the additional gain remains moderate — a large bowl of quark plays the same role, for less money.
When to take casein?
In the evening, about thirty minutes before bed, or as a snack between very spaced meals — a work afternoon without a break, a long journey. These are the only periods where its release spread over five to seven hours offers something different from whey. Around training, it has no particular advantage: a fast-acting protein is more suitable. And if your daily protein intake is already met by meals, the timing of intake doesn't change much.
What is the best casein?
Three label lines differentiate two pots, and the brand is not one of them. First, the form: "micellar casein" in full letters, and not "calcium caseinate" or "sodium caseinate," otherwise the slow digestion — the product's sole interest — disappears. Then the protein content per 100g, to be read in this column and not in the dose column. Finally, the price per kilo of protein, and not per kilo of powder. Taste and texture also matter more than elsewhere: it's the thickest protein in the section, and the one most often abandoned at the back of a cupboard.
Does casein make you gain weight?
Not by itself, and especially not "because you take it in the evening": the body doesn't store calories differently after 8 p.m. A 30g dose provides about 110 to 120 kcal, counted like any other. You gain weight if your total daily intake exceeds your expenditure, not because of a particular food. Added to an already sufficient diet, it adds calories; substituted for a sugary dessert, it removes them. To gain weight deliberately, the mass gain section is for that.
When to take casein for weight loss?
Let's be frank: no specific time of day makes you lose weight, and casein has no fat-burning effect. What it can do during a calorie deficit is more modest and very real: it is very satiating, and the time it is most helpful is when you are most exposed to snacking — in practice, the evening, after dinner. Prepared thick, to be eaten with a spoon, it replaces a dessert for about 110 kcal. The result comes from the sustained deficit over time, not from the powder.
Which protein to choose for weight loss?
No protein powder makes you lose weight: it is the energy deficit that changes body composition. What proteins provide during this period is different and very real: for the same calories, they are more satiating than carbohydrates and fats, and they limit muscle mass loss when overall intake decreases. In this area, casein has a textural advantage — thick, it keeps you feeling full longer in the evening — while a whey isolate provides more protein for fewer calories. The rest of the process is detailed in our weight loss section.
Does casein present any danger?
For a healthy person, no: it's a milk protein, present in cheese and yogurts forever. Special cases are cow's milk protein allergy — different from lactose intolerance, and contraindicating the product regardless of its lactose content — and known kidney failure, which requires medical advice before increasing protein intake. A very generous dose taken with too little water can cause digestive discomfort: this is a preparation issue, not a product issue.
What foods contain casein?
All dairy products, since it represents about 80% of milk proteins. The most concentrated are quark, skyr, petit-suisse, and pressed cheeses. Two hundred to two hundred and fifty grams of quark provide a quantity of casein comparable to a dose of powder, for a lower price. The powder only has two advantages: precise dosage and lighter digestion in the evening. The Ciqual database provides protein content per food item.
Does casein contain lactose?
A little, generally less than one gram per serving for a filtered micellar, which is well below the threshold most intolerant people can tolerate. If you are very sensitive, a whey isolate or an egg protein remain safer. Not to be confused with cow's milk protein allergy: in this case, it is casein itself that is the cause.
How much protein do you need per day?
The ANSES recommends 0.83 g per kilogram of body weight per day for healthy adults. Sports nutrition guidelines place bodybuilders significantly higher, in a commonly cited range of 1.6 to 2.2 g per kilogram — the need depends on body mass and activity level, not gender. Distribute over three to four servings rather than concentrating everything in the evening. If meals are not enough, our proteins fill the gap.
What are the budget caseins worth?
The question to ask is not the price but the form: micellar or caseinate. Many inexpensive options are based on calcium or sodium caseinate, which is cheaper to produce and faster to digest—thus negating the product's main benefit. A cheap pot whose composition line indicates "caseinate" is actually an intermediate-speed protein sold as a slow protein. Check the composition, the protein content per 100g, and the price per kilo of protein: a properly labeled micellar is still the best buy, even if it costs a little more.
Where to buy casein?
Online on this page, with shipping throughout France and Europe, or in our Vendargues store, about ten minutes from Montpellier, where pickup is available within two hours. For this protein more than any other, buying in-store has a concrete advantage: texture and taste can be discussed before leaving with a kilogram pot, and it is the product in the section that is most often unused when chosen from a photo.
In stock in Vendargues, fifteen minutes from Montpellier
Our caseins are available at 285 Rue Des Portes Domitiennes in Vendargues. For a protein with such a distinct texture, testing it is important: it's the product most often found abandoned at the back of a cupboard when purchased based on a picture.
You can also order online: we ship throughout France and Europe.
We detail the composition of a micellar casein, its actual texture, and the best time to take it in our article on IO Genix casein.
Sources
- ANSES — Protein intake: consumption, quality, needs, and recommendations
- ANSES — Ciqual table of food nutritional composition
To be integrated into a varied and balanced diet and a healthy lifestyle.
Questions fréquentes — Casein
La caséine, c'est quoi ?
C'est la principale protéine du lait : environ 80 % des protéines laitières, le reste étant la whey. Elle est organisée en micelles, des agrégats sphériques liés au calcium, qui coagulent au contact de l'acidité de l'estomac — c'est exactement ce qui se passe quand le lait caille, et c'est le principe même de la fabrication du fromage. En poudre, elle donne une protéine à digestion lente, dont les acides aminés sont libérés sur cinq à sept heures. Même profil d'acides aminés que la whey, vitesse différente : c'est toute la distinction.
Caséine micellaire, qu'est-ce que c'est ?
C'est la caséine dans sa forme native, extraite du lait par filtration à froid, sans traitement acide. Ses micelles restent intactes, et c'est cette structure qui forme un gel au contact de l'acidité de l'estomac avant de se déliter lentement. Le caséinate, obtenu par précipitation acide puis neutralisation, a perdu cette organisation : plus soluble, moins épais, mais digéré plus vite. Les deux se vendent sous le nom générique de « caséine », d'où l'importance de lire la ligne de composition.
Pourquoi prendre de la caséine ?
Pour couvrir une longue période sans apport alimentaire, la nuit en premier lieu. Elle sert aussi de collation rassasiante en fin de journée, là où sa texture épaisse tient mieux au corps qu'un shaker liquide. Ce sont ses deux terrains, et ils sont très identifiables dans une routine.
Quand prendre la caséine ?
Le soir, une trentaine de minutes avant le coucher, ou en collation entre deux repas très espacés — un après-midi de travail sans pause, un long trajet. Ce sont les périodes où sa libération étalée sur cinq à sept heures apporte quelque chose de différent d'une whey. Autour de l'entraînement, une protéine rapide est plus directement adaptée.
Quelle est la meilleure caséine ?
Deux lignes d'étiquette départagent deux pots. D'abord la forme : « caséine micellaire » en toutes lettres, et non « caséinate de calcium » ou « de sodium », puisque c'est la structure micellaire qui donne la digestion lente. Ensuite le taux protéique pour 100 g, à lire dans cette colonne et pas dans celle de la dose. Le goût et la texture comptent aussi plus qu'ailleurs : c'est la protéine la plus épaisse du rayon, et c'est pour ça qu'on gagne à la goûter avant de choisir son arôme.
Est-ce que la caséine fait grossir ?
Pas en elle-même, et surtout pas « parce qu'on la prend le soir » : l'organisme ne stocke pas différemment les calories après 20 heures. Une dose de 30 g apporte environ 110 à 120 kcal, comptabilisées comme n'importe quelles autres. Vous prenez du poids si le total de votre journée dépasse vos dépenses, pas à cause d'un aliment en particulier. Ajoutée à une alimentation déjà suffisante, elle ajoute des calories ; substituée à un dessert sucré, elle en retire. Pour prendre du poids délibérément, c'est le rayon prise de masse qui est fait pour ça.
Quand prendre la caséine pour maigrir ?
Aucune heure de prise ne fait maigrir, et la caséine n'est pas un brûleur. Ce qu'elle apporte pendant un déficit calorique est plus concret : elle est très rassasiante, et le moment où elle rend le plus service est la soirée, après le dîner. Préparée épaisse, à la cuillère, elle remplace un dessert pour 110 kcal environ. Le résultat vient du déficit tenu dans la durée, qu'elle rend plus facile à tenir.
Quelle protéine choisir pour perdre du poids ?
Aucune protéine en poudre ne fait maigrir : c'est le déficit énergétique qui fait évoluer la composition corporelle. Ce que les protéines apportent pendant cette période est différent et bien réel : à calories égales, elles rassasient davantage que les glucides et les lipides, et elles limitent la perte de masse musculaire quand l'apport global baisse. Sur ce terrain, la caséine a un avantage de texture — épaisse, elle tient mieux au corps le soir — tandis qu'une whey isolate apporte plus de protéines pour moins de calories. Le reste de la démarche est détaillé dans notre rayon perte de poids.
La caséine présente-t-elle un danger ?
Chez une personne en bonne santé, non : c'est une protéine de lait, présente dans le fromage et les yaourts depuis toujours. Les cas particuliers sont l'allergie aux protéines de lait de vache — différente de l'intolérance au lactose, et contre-indiquant le produit quelle que soit sa teneur en lactose — et l'insuffisance rénale connue, qui demande un avis médical avant d'augmenter les apports protéiques. Une dose très copieuse prise avec trop peu d'eau peut provoquer une lourdeur digestive : c'est un problème de préparation, pas de produit.
Quels aliments contiennent de la caséine ?
Tous les produits laitiers, puisqu'elle représente environ 80 % des protéines du lait. Les plus concentrés sont le fromage blanc, le skyr, le petit-suisse et les fromages à pâte pressée : deux cents à deux cent cinquante grammes de fromage blanc apportent une quantité de caséine comparable à une dose de poudre. La poudre, elle, ajoute un dosage précis et une digestion plus légère le soir. La base Ciqual donne les teneurs protéiques aliment par aliment.
La caséine contient-elle du lactose ?
Un peu, en général moins d'un gramme par dose pour une micellaire filtrée, soit largement en dessous du seuil que tolèrent la plupart des personnes intolérantes. Si vous êtes très sensible, une whey isolate ou une protéine d'œuf restent plus sûres. À ne pas confondre avec l'allergie aux protéines de lait de vache : dans ce cas, c'est la caséine elle-même qui est en cause.
Combien de protéines faut-il par jour ?
L'ANSES retient une référence de 0,83 g par kilo de poids corporel et par jour chez l'adulte en bonne santé. Les repères de nutrition sportive placent les pratiquants de musculation nettement au-dessus, dans une fourchette couramment citée de 1,6 à 2,2 g par kilo — le besoin dépend de la masse corporelle et du niveau d'activité, pas du sexe. Répartissez sur trois à quatre prises plutôt que de tout concentrer le soir. Si les repas ne suffisent pas, nos protéines comblent l'écart.
Que trouve-t-on de caséine chez nous ?
En ligne sur cette page, avec expédition partout en France et en Europe, ou dans notre boutique de Vendargues, à une dizaine de minutes de Montpellier, où le retrait se fait sous deux heures. Sur cette protéine plus que sur toute autre, le passage en boutique a un avantage concret : la texture et le goût se discutent avant de repartir avec un pot d'un kilo.
