Mass Gain

Gainers, proteins, carbohydrate powders, and creatine: what you need to build a sustainable caloric surplus when your appetite just can't keep up. This section is for those who already eat a lot but still can't gain weight. These products make reaching that surplus easier, day after day, without spending your life at the dinner table.

IO Genix Casein
IO Genix Casein - Chocolat
IO Genix Casein - Original Black Cookies
IO.GENIX

IO Genix Casein

(5)

44,90 € 40,41 €
IO Genix Creatine Monohydrate
IO Genix Creatine Monohydrate - créatine monohydrate micronisée en poudre
IO.GENIX

IO Genix Creatine Monohydrate

(0)

34,95 €

IO Genix Protein Mass
IO Genix Protein Mass - Chocolat
IO Genix Protein Mass - Original Black Cookies
IO Genix Protein Mass - Vanille-Noisettes
IO.GENIX

IO Genix Protein Mass

(1)

59,90 €

IO Genix Cyclic Dextrin
IO Genix Cyclic Dextrin - dextrine cyclique en poudre
IO.GENIX

IO Genix Cyclic Dextrin

(0)

31,10 €

IO Genix WaxyMaze
IO Genix WaxyMaze - amidon de maïs cireux en poudre
IO.GENIX

IO Genix WaxyMaze

(0)

22,90 €

Olimp Carbonox
Olimp Carbonox - pot 1000 g gout ananas
Olimp Carbonox - triple source carbohydrate complex for energy
OLIMP

Olimp Carbonox

(2)

14,90 €

Sinob Honest Whey
Sinob Honest Whey 820 g Nature
Sinob Honest Whey 820 g Glace à la Vanille
Sinob Honest Whey 820 g Fruits des bois
Sinob

Sinob Honest Whey

(10)

49,90 € 45,90 €
IO Genix Oat Flour
IO Genix Farine d'Avoine - Original Black Cookies
IO Genix Farine d'Avoine - Bombon Rocher
IO Genix Farine d'Avoine - ChokoKrac
IO.GENIX

IO Genix Oat Flour

(8)

9,90 €

VENDARGUES STORE
Pickup in 2 hours

What exactly is a bulking phase?

A bulking phase is a period during which you intentionally eat more than you expend, to provide your body with the energy and material needed to build muscle tissue. It is neither a product nor a training program: it is an energetic state.

Three conditions must be met simultaneously, and none can compensate for the absence of the others. A caloric surplus, without which the body has nothing to build. Progressive overload training, without which the surplus largely goes into adipose tissue. Sufficient protein intake, without which the stimulus lacks raw material.

The section below does not replace any of the three. A gainer doesn't build muscle: it provides calories, which solves an appetite problem, not a training problem. This is the most common disappointment at the counter, so it's worth stating upfront.

How to calculate your caloric surplus?

Energy expenditure equations provide an order of magnitude, with a significant margin of error from one individual to another. The observational method is much more robust, and it consists of three steps.

Establish your equilibrium point. For two weeks, eat as usual and record your intake. Weigh yourself first thing in the morning several times a week, and note the weekly average rather than the daily figure: variations in water and digestive content far exceed those in tissues. If the average doesn't move, you've found your maintenance.

Add a moderate surplus. Around 250 to 500 kcal above this maintenance. Beyond that, the amount stored as fat increases significantly, without muscle building following: muscle has a maximum growth rate that no additional surplus will exceed.

Adjust every two or three weeks. If the average stagnates: add 200 kcal. If it's climbing too fast: remove the same amount. This is the only adjustment needed, and it's better than changing products every month. A frequently overlooked point: maintenance increases as you gain weight, and a surplus that worked two months ago may have become maintenance today.

Bulking or getting fat: where's the line?

There is no caloric surplus that goes only into muscle. Some fat always accompanies weight gain; the only variable you influence is the proportion, and it mainly depends on the speed.

A useful benchmark: 0.25 to 0.5% of body weight per week. For a 75 kg individual, this is about 200 to 375 g per week, or 1 to 1.5 kg per month. A beginner will be at the higher end of the range; an advanced trainee progresses more slowly, as the potential for muscle gain decreases with years of training.

Beyond 1% of body weight per week, the outcome is consistent: the scale climbs fast, so does your waistline, and the subsequent cut negates some of the work. Gaining 4 kg in a month is not four times better than gaining 1 kg; it's mostly three kilos to lose again.

Two indicators are better than the scale alone: the progression of loads and waist circumference measured once a week under the same conditions. If loads increase and waist circumference is stable, the surplus is well-calibrated; if the opposite, it's too high.

What is each product in this section for?

Each family addresses a specific problem, and none addresses the problem of training.

Hard gainers are very caloric blends with a high carb-to-protein ratio. Their benefit is purely practical: they provide calories in one shake that would otherwise need to be chewed. This is a solution for a limited appetite, not genetics.

Lean gainers apply the same principle with more protein and fewer fast-acting sugars. They are suitable when the gain needs to be more gradual, or when hard gainers are not well-tolerated.

Protein powder covers protein intake, which gainers don't always provide. Usual sports nutrition guidelines place strength trainers around 1.6 to 2.2 g per kilogram per day, including food; ANSES recommends 0.83 g per kilogram for healthy adults, which describes the needs of a sedentary person.

Creatine monohydrate is the only supplement in this section whose effect on performance is recognized by an authorized claim in the European Union, for 3 g per day and for specific activities: successive sets of very intense, short-duration exercises. In practice, one or two more reps on heavy sets, thus more accumulated volume over several months. It provides no calories and builds nothing by itself.

Carbohydrate powders densify a shake or meal. Maltodextrin, with rapid digestion, is useful around workouts; rice cream and oat flour are better suited for meals and breakfasts, with a more consistent texture.

Peanut butter adds calories without volume: as lipids are the densest macronutrient, a spoon in a shake or on oatmeal changes the daily total without taking up space in the stomach. A convenient lever when appetite is capped.

I eat a lot and don't gain: why?

This is the most common situation described at the counter, and the explanation is almost always the same: you eat less than you think. This is not a reproach, it's an observation based on measurement.

The sources of error are always the same. Portions are estimated by eye rather than weighed, and the discrepancy is systematically downwards. One or two exceptional meals mask five significantly lighter days, whereas only the average counts. Cooking oil, sauces, and drinks are not accounted for. And appetite self-regulates: a large lunch often leads to a spontaneously lighter dinner, without you being aware of it.

The second explanation is spontaneous activity: some people unconsciously increase their movement and time spent standing when they eat more, which absorbs part of the surplus.

The verification is simple: record everything, without exception, for seven days, weighing everything. If the average truly exceeds your maintenance and your weight doesn't change over three weeks, a medical consultation makes sense — unexplained stagnation despite high intake falls under a doctor's purview, not a supplement's.

If the problem is indeed appetite and not calculation, that's where gainers and dense caloric sources come in: drinking 800 kcal takes five minutes; chewing them takes forty.

Frequently Asked Questions

What is bulking?

A period during which one voluntarily eats more than one expends, in order to give the body what it needs to build muscle tissue. It is neither a product, nor a training program, nor permission to eat anything: it is an energetic state, which only makes sense when combined with progressive overload training and sufficient protein intake. Without training, the surplus is stored as fat; without a surplus, training has nothing to build with. The term is opposed to "cutting," which describes the opposite situation.

What is the purpose of bulking, and when should I do it?

Its purpose is simple: muscle building requires energy, and it is significantly more effective with a caloric surplus than a deficit. Trying to gain muscle and lose fat at the same time only works well for beginners, overweight individuals, and those returning after a long break. When to start? When you are at a reasonable body fat percentage and your progress has stalled despite serious training. If you already start with a lot of fat, a weight loss phase first is more rational: you will then gain better and for longer.

How to do a good bulk?

In four steps, in this order. One: establish your maintenance by recording your intake for two weeks and tracking your weekly average weight. Two: add 250 to 500 kcal, no more — beyond that, it's fat that's added, not muscle. Three: aim for 1.6 to 2.2 g of protein per kilogram of body weight, distributed throughout the day. Four: train with progressive overload and record your weights, otherwise none of this will be useful. Then adjust every two to three weeks based on the scale and waist circumference. The rest — timing, supplements, brands — weighs marginally compared to these four points.

What foods for bulking?

The same as usual, in larger quantities — and prioritizing those that provide many calories in little volume, since appetite is the limiting factor. For protein: whole eggs, meats, fatty fish, cottage cheese, legumes. For carbohydrates: rice, pasta, potatoes, bread, oatmeal, dried fruits. For fats, the most effective for densifying: olive oil, nuts, peanut butter, avocado — 9 kcal per gram versus 4 for the others. Classic mistakes to avoid: too many bulky vegetables and low-fat products, which fill the stomach without providing anything, and relying on ultra-processed foods under the pretext that "anything goes."

How to gain muscle volume?

By three levers, and no supplement is included in the first two. Firstly, training volume: the number of effective sets per muscle group per week is the parameter most correlated with hypertrophy, with sets taken sufficiently close to failure. Secondly, progressive overload: adding weight or repetitions over the weeks. Finally, energy and protein, which allow the first two to produce something. Count in months, not weeks: a gain of 1 to 2 kg of muscle per year for an experienced lifter is already a good result, even if the first year is more generous.

What type of training for bulking?

Resistance training, three to five sessions per week, built around compound movements — squat, deadlift, presses, pull-ups, rows — supplemented with isolation exercises. Sets of 6 to 15 repetitions cover most hypertrophy work, provided they are taken close enough to failure to be stimulating. The determining factor is not the choice of exercises but the recorded progression: if your loads and repetitions do not increase over two months, the program is not working, whatever its name. For an individualized program, consult a certified coach: that is not our profession.

How do you know if you're bulking correctly?

Three indicators monitored together, never the scale alone. Speed: 0.25 to 0.5% of body weight per week, or 1 to 1.5 kg per month for 75 kg — faster, the fat portion increases. Training loads: if they don't increase, you're gaining weight without gaining muscle. Waist circumference, measured once a week under the same conditions: stable or almost, the surplus is well-calibrated; rapidly increasing, it's too high. The ideal combination is simple to read: loads increasing, weight increasing slowly, waist circumference changing little.

How to gain muscle mass quickly?

The rate of muscle building has a physiological limit that nothing can exceed: neither a supplement nor a larger surplus. What you can accelerate is weight gain, and the additional portion will be fat. The only real lever is consistency: a moderate surplus maintained for six months produces more than a six-week push followed by a cut.

Is it dangerous to bulk?

Done with a moderate surplus and a varied diet, no: it's a dietary period, not a treatment. Problems arise with excess. A very large and prolonged surplus primarily increases fat mass, with the known metabolic consequences; a bulk based on ultra-processed foods degrades the lipid profile and the intake of fiber and micronutrients; and digestive discomfort is common when forcing food volume. Two real precautions: have your blood work checked if you conduct long phases, and seek medical advice before starting in case of diabetes, lipid disorder, hypertension, or chronic pathology. A bulk should also not be done "to hide" a difficult relationship with food: in that case, a healthcare professional should be consulted.

Which gainer to choose?

The one you can consistently drink every day for three months. For equal calories, a very sugary hard gainer that turns you off in a week will be less effective than a higher-protein lean gainer that you stick with long-term. Compare the carb-to-protein ratio, the type of carbohydrates, digestibility, and taste before the brand.

When to take your gainer?

Between meals, when you wouldn't have eaten anything: mid-morning, mid-afternoon, or after training. Taking it instead of a meal creates no surplus; it simply replaces food with powder. The precise timing matters little; the daily total determines everything.

Can you bulk without a gainer?

Yes, entirely. A gainer is just a mixture of carbohydrates and proteins: you can recreate it with a dose of whey concentrate, oat flour, a banana, milk, and a spoonful of peanut butter. It's cheaper and nutritionally more interesting, but takes longer to prepare daily — which is why many give up in two weeks. The ready-made product buys consistency, nothing else.

How much protein per day during bulking?

Typical guidelines for strength trainers are around 1.6 to 2.2 g per kilogram per day, including food — about 120 to 165 g for 75 kg. Going beyond this has no proven benefit for muscle mass and occupies caloric space that would be more useful for carbohydrates during this period.

Which whey for bulking?

A whey concentrate, in most cases: its residual carbohydrates and lipids provide a few extra calories, which aligns with the goal, and it costs less per kilo of protein. An isolate is only justified here if you digest it poorly. For a slow source in the evening, casein is an option, but not essential.

Should I take creatine during a bulk?

It integrates well, at 3 to 5 g per day, including rest days, without mandatory loading phase. Expect rapid weight gain in the first few weeks: creatine draws water into muscle cells, which is not fat, but skews the scale reading. Wait three weeks before judging your progress.

What can you find in our selection?

We select gainers based on three clear criteria: the type of carbohydrates, the actual protein content, and the length of the ingredient list. We feature brands such as Mutant Nutrition, the IO Genix, Sinob, and Olimp Sport Nutrition ranges, as well as functional carbohydrates like waxy maize and cyclic dextrin for energy around workouts.

When the gain period ends, the weight loss section takes over, based on exactly the same inverse principle: the caloric balance determines everything, not the supplement.

Where to get advice near Montpellier?

The formats in this section often range from 3 to 7 kg: making a mistake can be costly. Our Vendargues store, about ten minutes from Montpellier, allows you to compare nutritional tables in hand and determine what you really need — sometimes calories, often just consistency, and sometimes nothing at all. A 5 kg bag is also easier to transport from the parking lot than from a pickup point. We ship throughout France and Europe.

Sources: ANSES for protein nutritional references and advice on supplements for athletes, EFSA for authorized claims related to creatine. This information does not replace medical advice. To be integrated into a varied diet and a healthy lifestyle.

To go further: how to dose and use Mutant Mass.

View Store
IO Genix Cream of Rice
IO Genix Crème de Riz - Nature
IO Genix Crème de Riz - ChokoKrac
IO Genix Crème de Riz - Original Black Cookies
IO.GENIX

IO Genix Cream of Rice

(6)

12,90 €

Sinob Core Creapure
Sinob Core Creapure - German creatine monohydrate
Sinob

Sinob Core Creapure

(1)

45,90 € 41,31 €
Sinob Maltodextrin
Sinob Maltodextrin - fast carbohydrates for mass gain
Sinob

Sinob Maltodextrin

(0)

36,90 € 31,36 €
IO Genix Whey 80 Professional
IO Genix Whey 80 Professional - Chocolat
IO Genix Whey 80 Professional - Milkshake Vanille
IO Genix Whey 80 Professional - Petit Yaourt Fraise-Banane
IO.GENIX

IO Genix Whey 80 Professional

(3)

54,90 € 49,41 €
Mutant Mass
Mutant Mass - protein gainer for extreme mass gain
Mutant Mass 6800 g gainer prise de masse
Mutant Mass 6800 g Cookies and Cream
Mutant

Mutant Mass

(0)

From 43,90 €

IO Genix Crealuxe Creapure®
IO Genix Crealuxe Creapure 250 g - Nature
IO Genix Crealuxe Creapure 250 g - Framboise
IO Genix Crealuxe Creapure 500 g - Nature
IO.GENIX

IO Genix Crealuxe Creapure®

(1)

29,90 € From 25,90 €
Rule One Whey Blend
Rule One Whey Blend - triple source whey protein
Rule One Whey Blend 900 g Chocolate Fudge
Rule One Whey Blend 900 g Campfire S'mores
Rule One

Rule One Whey Blend

(0)

59,90 € From 54,90 €
Naughty Boy Creatine
Naughty Boy Creatine - pot 300 g nature
Naughty Boy Creatine - pot 150 g nature
Naughty Boy Creatine - pot 450 g nature
Naughty Boy

Naughty Boy Creatine

(0)

From 19,90 €

Life Pro Nutrition Tasty Rice
Life Pro Tasty Rice - sachet 1 kg nature
Life Pro Tasty Rice Choco Monky 1 kg
Life Pro Tasty Rice Choco Good Cookies 1 kg
LifePro Nutrition

Life Pro Nutrition Tasty Rice

(0)

From 8,90 €

ESN Whey Designer 908 g
ESN Whey Designer 908 g - whey protein complex made in Germany
ESN Whey Designer 908 g Nature
ESN Whey Designer 908 g Almond Coconut
ESN

ESN Whey Designer 908 g

(0)

49,90 € 46,90 €

Retrait au magasin sous 2 h

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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.

Une question avant de commander ?

Écrivez-nous ou passez au magasin : on connaît les produits qu'on vend.

What exactly is a bulking phase?

A bulking phase is a period during which you intentionally eat more than you expend, to provide your body with the energy and material needed to build muscle tissue. It is neither a product nor a training program: it is an energetic state.

Three conditions must be met simultaneously, and none can compensate for the absence of the others. A caloric surplus, without which the body has nothing to build. Progressive overload training, without which the surplus largely goes into adipose tissue. Sufficient protein intake, without which the stimulus lacks raw material.

The section below does not replace any of the three. A gainer doesn't build muscle: it provides calories, which solves an appetite problem, not a training problem. This is the most common disappointment at the counter, so it's worth stating upfront.

How to calculate your caloric surplus?

Energy expenditure equations provide an order of magnitude, with a significant margin of error from one individual to another. The observational method is much more robust, and it consists of three steps.

Establish your equilibrium point. For two weeks, eat as usual and record your intake. Weigh yourself first thing in the morning several times a week, and note the weekly average rather than the daily figure: variations in water and digestive content far exceed those in tissues. If the average doesn't move, you've found your maintenance.

Add a moderate surplus. Around 250 to 500 kcal above this maintenance. Beyond that, the amount stored as fat increases significantly, without muscle building following: muscle has a maximum growth rate that no additional surplus will exceed.

Adjust every two or three weeks. If the average stagnates: add 200 kcal. If it's climbing too fast: remove the same amount. This is the only adjustment needed, and it's better than changing products every month. A frequently overlooked point: maintenance increases as you gain weight, and a surplus that worked two months ago may have become maintenance today.

Bulking or getting fat: where's the line?

There is no caloric surplus that goes only into muscle. Some fat always accompanies weight gain; the only variable you influence is the proportion, and it mainly depends on the speed.

A useful benchmark: 0.25 to 0.5% of body weight per week. For a 75 kg individual, this is about 200 to 375 g per week, or 1 to 1.5 kg per month. A beginner will be at the higher end of the range; an advanced trainee progresses more slowly, as the potential for muscle gain decreases with years of training.

Beyond 1% of body weight per week, the outcome is consistent: the scale climbs fast, so does your waistline, and the subsequent cut negates some of the work. Gaining 4 kg in a month is not four times better than gaining 1 kg; it's mostly three kilos to lose again.

Two indicators are better than the scale alone: the progression of loads and waist circumference measured once a week under the same conditions. If loads increase and waist circumference is stable, the surplus is well-calibrated; if the opposite, it's too high.

What is each product in this section for?

Each family addresses a specific problem, and none addresses the problem of training.

Hard gainers are very caloric blends with a high carb-to-protein ratio. Their benefit is purely practical: they provide calories in one shake that would otherwise need to be chewed. This is a solution for a limited appetite, not genetics.

Lean gainers apply the same principle with more protein and fewer fast-acting sugars. They are suitable when the gain needs to be more gradual, or when hard gainers are not well-tolerated.

Protein powder covers protein intake, which gainers don't always provide. Usual sports nutrition guidelines place strength trainers around 1.6 to 2.2 g per kilogram per day, including food; ANSES recommends 0.83 g per kilogram for healthy adults, which describes the needs of a sedentary person.

Creatine monohydrate is the only supplement in this section whose effect on performance is recognized by an authorized claim in the European Union, for 3 g per day and for specific activities: successive sets of very intense, short-duration exercises. In practice, one or two more reps on heavy sets, thus more accumulated volume over several months. It provides no calories and builds nothing by itself.

Carbohydrate powders densify a shake or meal. Maltodextrin, with rapid digestion, is useful around workouts; rice cream and oat flour are better suited for meals and breakfasts, with a more consistent texture.

Peanut butter adds calories without volume: as lipids are the densest macronutrient, a spoon in a shake or on oatmeal changes the daily total without taking up space in the stomach. A convenient lever when appetite is capped.

I eat a lot and don't gain: why?

This is the most common situation described at the counter, and the explanation is almost always the same: you eat less than you think. This is not a reproach, it's an observation based on measurement.

The sources of error are always the same. Portions are estimated by eye rather than weighed, and the discrepancy is systematically downwards. One or two exceptional meals mask five significantly lighter days, whereas only the average counts. Cooking oil, sauces, and drinks are not accounted for. And appetite self-regulates: a large lunch often leads to a spontaneously lighter dinner, without you being aware of it.

The second explanation is spontaneous activity: some people unconsciously increase their movement and time spent standing when they eat more, which absorbs part of the surplus.

The verification is simple: record everything, without exception, for seven days, weighing everything. If the average truly exceeds your maintenance and your weight doesn't change over three weeks, a medical consultation makes sense — unexplained stagnation despite high intake falls under a doctor's purview, not a supplement's.

If the problem is indeed appetite and not calculation, that's where gainers and dense caloric sources come in: drinking 800 kcal takes five minutes; chewing them takes forty.

Frequently Asked Questions

What is bulking?

A period during which one voluntarily eats more than one expends, in order to give the body what it needs to build muscle tissue. It is neither a product, nor a training program, nor permission to eat anything: it is an energetic state, which only makes sense when combined with progressive overload training and sufficient protein intake. Without training, the surplus is stored as fat; without a surplus, training has nothing to build with. The term is opposed to "cutting," which describes the opposite situation.

What is the purpose of bulking, and when should I do it?

Its purpose is simple: muscle building requires energy, and it is significantly more effective with a caloric surplus than a deficit. Trying to gain muscle and lose fat at the same time only works well for beginners, overweight individuals, and those returning after a long break. When to start? When you are at a reasonable body fat percentage and your progress has stalled despite serious training. If you already start with a lot of fat, a weight loss phase first is more rational: you will then gain better and for longer.

How to do a good bulk?

In four steps, in this order. One: establish your maintenance by recording your intake for two weeks and tracking your weekly average weight. Two: add 250 to 500 kcal, no more — beyond that, it's fat that's added, not muscle. Three: aim for 1.6 to 2.2 g of protein per kilogram of body weight, distributed throughout the day. Four: train with progressive overload and record your weights, otherwise none of this will be useful. Then adjust every two to three weeks based on the scale and waist circumference. The rest — timing, supplements, brands — weighs marginally compared to these four points.

What foods for bulking?

The same as usual, in larger quantities — and prioritizing those that provide many calories in little volume, since appetite is the limiting factor. For protein: whole eggs, meats, fatty fish, cottage cheese, legumes. For carbohydrates: rice, pasta, potatoes, bread, oatmeal, dried fruits. For fats, the most effective for densifying: olive oil, nuts, peanut butter, avocado — 9 kcal per gram versus 4 for the others. Classic mistakes to avoid: too many bulky vegetables and low-fat products, which fill the stomach without providing anything, and relying on ultra-processed foods under the pretext that "anything goes."

How to gain muscle volume?

By three levers, and no supplement is included in the first two. Firstly, training volume: the number of effective sets per muscle group per week is the parameter most correlated with hypertrophy, with sets taken sufficiently close to failure. Secondly, progressive overload: adding weight or repetitions over the weeks. Finally, energy and protein, which allow the first two to produce something. Count in months, not weeks: a gain of 1 to 2 kg of muscle per year for an experienced lifter is already a good result, even if the first year is more generous.

What type of training for bulking?

Resistance training, three to five sessions per week, built around compound movements — squat, deadlift, presses, pull-ups, rows — supplemented with isolation exercises. Sets of 6 to 15 repetitions cover most hypertrophy work, provided they are taken close enough to failure to be stimulating. The determining factor is not the choice of exercises but the recorded progression: if your loads and repetitions do not increase over two months, the program is not working, whatever its name. For an individualized program, consult a certified coach: that is not our profession.

How do you know if you're bulking correctly?

Three indicators monitored together, never the scale alone. Speed: 0.25 to 0.5% of body weight per week, or 1 to 1.5 kg per month for 75 kg — faster, the fat portion increases. Training loads: if they don't increase, you're gaining weight without gaining muscle. Waist circumference, measured once a week under the same conditions: stable or almost, the surplus is well-calibrated; rapidly increasing, it's too high. The ideal combination is simple to read: loads increasing, weight increasing slowly, waist circumference changing little.

How to gain muscle mass quickly?

The rate of muscle building has a physiological limit that nothing can exceed: neither a supplement nor a larger surplus. What you can accelerate is weight gain, and the additional portion will be fat. The only real lever is consistency: a moderate surplus maintained for six months produces more than a six-week push followed by a cut.

Is it dangerous to bulk?

Done with a moderate surplus and a varied diet, no: it's a dietary period, not a treatment. Problems arise with excess. A very large and prolonged surplus primarily increases fat mass, with the known metabolic consequences; a bulk based on ultra-processed foods degrades the lipid profile and the intake of fiber and micronutrients; and digestive discomfort is common when forcing food volume. Two real precautions: have your blood work checked if you conduct long phases, and seek medical advice before starting in case of diabetes, lipid disorder, hypertension, or chronic pathology. A bulk should also not be done "to hide" a difficult relationship with food: in that case, a healthcare professional should be consulted.

Which gainer to choose?

The one you can consistently drink every day for three months. For equal calories, a very sugary hard gainer that turns you off in a week will be less effective than a higher-protein lean gainer that you stick with long-term. Compare the carb-to-protein ratio, the type of carbohydrates, digestibility, and taste before the brand.

When to take your gainer?

Between meals, when you wouldn't have eaten anything: mid-morning, mid-afternoon, or after training. Taking it instead of a meal creates no surplus; it simply replaces food with powder. The precise timing matters little; the daily total determines everything.

Can you bulk without a gainer?

Yes, entirely. A gainer is just a mixture of carbohydrates and proteins: you can recreate it with a dose of whey concentrate, oat flour, a banana, milk, and a spoonful of peanut butter. It's cheaper and nutritionally more interesting, but takes longer to prepare daily — which is why many give up in two weeks. The ready-made product buys consistency, nothing else.

How much protein per day during bulking?

Typical guidelines for strength trainers are around 1.6 to 2.2 g per kilogram per day, including food — about 120 to 165 g for 75 kg. Going beyond this has no proven benefit for muscle mass and occupies caloric space that would be more useful for carbohydrates during this period.

Which whey for bulking?

A whey concentrate, in most cases: its residual carbohydrates and lipids provide a few extra calories, which aligns with the goal, and it costs less per kilo of protein. An isolate is only justified here if you digest it poorly. For a slow source in the evening, casein is an option, but not essential.

Should I take creatine during a bulk?

It integrates well, at 3 to 5 g per day, including rest days, without mandatory loading phase. Expect rapid weight gain in the first few weeks: creatine draws water into muscle cells, which is not fat, but skews the scale reading. Wait three weeks before judging your progress.

What can you find in our selection?

We select gainers based on three clear criteria: the type of carbohydrates, the actual protein content, and the length of the ingredient list. We feature brands such as Mutant Nutrition, the IO Genix, Sinob, and Olimp Sport Nutrition ranges, as well as functional carbohydrates like waxy maize and cyclic dextrin for energy around workouts.

When the gain period ends, the weight loss section takes over, based on exactly the same inverse principle: the caloric balance determines everything, not the supplement.

Where to get advice near Montpellier?

The formats in this section often range from 3 to 7 kg: making a mistake can be costly. Our Vendargues store, about ten minutes from Montpellier, allows you to compare nutritional tables in hand and determine what you really need — sometimes calories, often just consistency, and sometimes nothing at all. A 5 kg bag is also easier to transport from the parking lot than from a pickup point. We ship throughout France and Europe.

Sources: ANSES for protein nutritional references and advice on supplements for athletes, EFSA for authorized claims related to creatine. This information does not replace medical advice. To be integrated into a varied diet and a healthy lifestyle.

To go further: how to dose and use Mutant Mass.

Sources

À intégrer dans une alimentation variée et équilibrée et un mode de vie sain.

Questions fréquentes — Mass Gain

C'est quoi la prise de masse ?

Une période pendant laquelle on mange volontairement plus que ce que l'on dépense, afin de donner à l'organisme de quoi construire du tissu musculaire. Ce n'est ni un produit, ni un programme d'entraînement, ni une autorisation à manger n'importe quoi : c'est un état énergétique, qui n'a de sens que combiné à un entraînement en surcharge progressive et à un apport protéique suffisant. Sans entraînement, le surplus se dépose en graisse ; sans surplus, l'entraînement ne trouve pas de quoi construire. Le terme s'oppose à la « sèche », qui décrit la situation inverse.

Quel est l'intérêt d'une prise de masse, et quand la faire ?

Son intérêt est simple : la construction de muscle demande de l'énergie, et elle est nettement plus efficace en surplus calorique qu'en déficit. Vouloir prendre du muscle et perdre du gras en même temps ne fonctionne bien que chez les débutants, les personnes en surpoids et celles qui reprennent après une longue interruption. Quand la commencer ? Quand vous êtes à un taux de masse grasse raisonnable et que votre progression stagne malgré un entraînement sérieux. Si vous partez déjà avec beaucoup de gras, une phase de perte de poids d'abord est plus rationnelle : vous prendrez ensuite mieux, et plus longtemps.

Comment faire une bonne prise de masse ?

En quatre étapes, dans cet ordre. Un : établissez votre maintenance en notant vos apports deux semaines et en suivant la moyenne hebdomadaire de votre poids. Deux : ajoutez 250 à 500 kcal, pas davantage — au-delà, c'est du gras qui s'ajoute, pas du muscle. Trois : visez 1,6 à 2,2 g de protéines par kilo de poids de corps, répartis sur la journée. Quatre : entraînez-vous en surcharge progressive et notez vos charges, sans quoi rien de tout cela ne sert. Puis ajustez toutes les deux à trois semaines selon la balance et le tour de taille. Ces quatre points posés, le timing et le choix des produits se règlent facilement.

Quels aliments pour la prise de masse ?

Les mêmes que d'habitude, en plus grande quantité — et en privilégiant ceux qui apportent beaucoup de calories sous peu de volume, puisque c'est l'appétit qui limite. Côté protéines : œufs entiers, viandes, poissons gras, fromage blanc, légumineuses. Côté glucides : riz, pâtes, pommes de terre, pain, flocons d'avoine, fruits secs. Côté lipides, les plus efficaces pour densifier : huile d'olive, oléagineux, beurre de cacahuète, avocat — 9 kcal par gramme contre 4 pour les autres. Les erreurs classiques à éviter : trop de légumes volumineux et de produits allégés, qui remplissent l'estomac sans rien apporter, et le recours aux aliments ultra-transformés sous prétexte que « tout passe ».

Comment prendre du volume musculaire ?

Par trois leviers. Le volume de travail d'abord : le nombre de séries efficaces par groupe musculaire et par semaine est le paramètre le plus corrélé à l'hypertrophie, avec des séries menées assez près de l'échec. La surcharge progressive ensuite : ajouter du poids ou des répétitions au fil des semaines. L'énergie et les protéines enfin, qui permettent aux deux premiers de produire quelque chose. Comptez en mois, pas en semaines : un gain de 1 à 2 kg de muscle par an chez un pratiquant confirmé est déjà un bon résultat, la première année étant plus généreuse.

Quel type d'entraînement pour prendre de la masse ?

Un entraînement en résistance, trois à cinq séances par semaine, construit autour de mouvements polyarticulaires — squat, soulevé de terre, développés, tractions, rowing — complétés d'exercices d'isolation. Les séries de 6 à 15 répétitions couvrent l'essentiel du travail d'hypertrophie, à condition d'être menées assez près de l'échec pour être stimulantes. Le point déterminant reste la progression enregistrée : des charges et des répétitions qui montent sur deux mois signent un programme qui fonctionne. Pour un programme individualisé, un coach diplômé reste la référence.

Comment savoir si on fait une bonne prise de masse ?

Trois indicateurs suivis ensemble, jamais la balance seule. La vitesse : 0,25 à 0,5 % du poids de corps par semaine, soit 1 à 1,5 kg par mois pour 75 kg — plus vite, la part de gras augmente. Les charges à l'entraînement : si elles ne montent pas, vous prenez du poids sans prendre de muscle. Le tour de taille, mesuré une fois par semaine dans les mêmes conditions : stable ou presque, le surplus est bien calibré ; en hausse rapide, il est trop élevé. La combinaison idéale est simple à lire : charges qui montent, poids qui monte lentement, tour de taille qui bouge peu.

Comment prendre de la masse musculaire rapidement ?

La vitesse de construction musculaire a une limite physiologique que rien ne dépasse : ni un complément, ni un surplus plus important. Ce que vous pouvez accélérer, c'est la prise de poids, et la part supplémentaire sera du gras. Le seul levier réel est la régularité : un surplus modéré tenu six mois produit davantage qu'un forcing de six semaines suivi d'une sèche.

Est-il dangereux de faire une prise de masse ?

Menée avec un surplus modéré et une alimentation variée, non : c'est une période alimentaire, pas un traitement. Les problèmes apparaissent avec les excès. Un surplus très important et prolongé fait surtout monter la masse grasse, avec les conséquences métaboliques qu'on connaît ; une prise de masse fondée sur les aliments ultra-transformés dégrade le profil lipidique et l'apport en fibres et micronutriments ; et l'inconfort digestif est fréquent quand on force le volume alimentaire. Deux précautions réelles : faites contrôler votre bilan sanguin si vous menez des phases longues, et demandez un avis médical avant de commencer en cas de diabète, de trouble lipidique, d'hypertension ou de pathologie chronique. Une prise de masse ne se fait pas non plus « pour cacher » un rapport difficile à l'alimentation : dans ce cas, c'est un professionnel de santé qu'il faut voir.

Quel gainer choisir ?

Celui que vous arriverez à boire tous les jours pendant trois mois. À calories égales, un hard gainer très sucré qui vous écœure en une semaine sera moins efficace qu'un lean gainer plus protéiné que vous tenez sur la durée. Comparez le ratio glucides-protéines, la nature des glucides, la digestibilité et le goût avant la marque.

Quand prendre son gainer ?

En dehors des repas, là où vous n'auriez rien mangé : milieu de matinée, milieu d'après-midi, ou après l'entraînement. Le prendre à la place d'un repas ne crée aucun surplus, cela remplace simplement des aliments par de la poudre. Le moment précis importe peu ; le total de la journée décide de tout.

Peut-on faire une prise de masse sans gainer ?

Oui, entièrement. Un gainer est un mélange de glucides et de protéines : vous le reconstituez avec une dose de whey concentrée, de la farine d'avoine, une banane, du lait et une cuillère de beurre de cacahuète. La version maison demande quelques minutes de préparation chaque jour ; le produit tout prêt apporte la régularité, qui est précisément ce qui fait la différence sur trois mois.

Combien de protéines par jour en prise de masse ?

Les repères usuels situent les pratiquants de musculation autour de 1,6 à 2,2 g par kilogramme et par jour, alimentation comprise — environ 120 à 165 g pour 75 kg. Monter au-delà n'apporte pas de bénéfice démontré sur la masse musculaire, et prend dans le total calorique une place plus utile aux glucides pendant cette période.

Quelle whey pour la prise de masse ?

Une whey concentrée, dans la majorité des cas : ses glucides et lipides résiduels apportent quelques calories de plus, ce qui va dans le sens de l'objectif. Un isolat trouve sa place ici quand la digestion le demande. Pour une source lente le soir, la caséine est une option intéressante.

Faut-il prendre de la créatine pendant une prise de masse ?

Elle s'y intègre bien, à 3 à 5 g par jour, jours de repos compris, sans phase de charge obligatoire. Attendez-vous à une prise de poids rapide les premières semaines : la créatine attire de l'eau dans la cellule musculaire, ce n'est pas de la graisse, mais cela fausse la lecture de la balance. Attendez trois semaines avant de juger votre courbe.