Omega 3

When it comes to omega-3s, only one line matters: the milligrams of EPA and DHA per capsule, not the milligrams of oil. Our selection only includes formulas that clearly display this information, whether it's fish oil or microalgae for plant-based versions. It's one of the most purchased supplements in the micronutrition aisle, and one of the easiest to incorporate into your daily routine.

IO Genix Omega 3
IO Genix Oméga 3 - huile de poisson EPA DHA en capsules
IO.GENIX

IO Genix Omega 3

(0)

17,25 €

IO Genix Super Omega 3 Luxury
IO Genix Super Omega 3 Luxury - huile de poisson concentrée EPA DHA
IO.GENIX

IO Genix Super Omega 3 Luxury

(0)

34,90 €

TrainedByJP OH Mega V
TrainedByJP OH Mega V, plant-based omega 3 6 9 from flaxseed
Trained by JP OH Mega V composition
Trained by JP

TrainedByJP OH Mega V

(0)

28,50 €

Osavi Oméga-3 végétal 250 mg DHA
Osavi Oméga-3 végétal 250 mg DHA, flacon de 60 capsules
Osavi Oméga-3 végétal 250 mg DHA, flacon de 120 capsules
Osavi

Osavi Oméga-3 végétal 250 mg DHA

(0)

From 19,90 €

Osavi Huile de krill 1180 mg
Osavi Huile de krill 1180 mg, flacon de 60 capsules
Osavi Huile de krill 1180 mg, flacon de 120 capsules
Osavi

Osavi Huile de krill 1180 mg

(0)

From 29,90 €

VENDARGUES STORE
Pickup in 2 hours

What are omega-3s used for, and what does European regulation say?

Omega-3s are among the very few supplements for which the European Union has validated health claims. Four are listed in the European register, each with a daily dose condition.

  • "Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) contribute to normal heart function" — effect achieved with 250 mg of EPA and DHA per day.
  • "Docosahexaenoic acid (DHA) contributes to normal brain function" — 250 mg of DHA per day.
  • "Docosahexaenoic acid (DHA) contributes to the maintenance of normal vision" — 250 mg of DHA per day.
  • "Alpha-linolenic acid (ALA) contributes to the maintenance of normal blood cholesterol levels" — 2 g of ALA per day.

The thresholds are low: 250 mg can be reached with one to two properly dosed capsules. Note that the brain and vision claims relate to DHA alone: a formula rich in EPA and low in DHA does not meet these. None of these phrases speak of treating, preventing, or curing — an omega-3 is a nutritional supplement, not a medicine, and a brand that promises more is selling you a story.

EPA, DHA, ALA: why is plant-based omega-3 not enough?

Three very different molecules are hidden behind the word. ALA (alpha-linolenic acid) is the plant-based omega-3 found in flax, rapeseed, walnuts, and chia. EPA and DHA are the long-chain forms found in fatty fish and certain microalgae. Only these two are targeted by the cardiac, brain, and vision claims.

The decisive point, rarely stated clearly: the body converts ALA into EPA then into DHA, but very inefficiently. Conversion to EPA is only a few percent of the ingested ALA, and conversion to DHA is even lower, often negligible in adults — and an excess of omega-6 exacerbates the phenomenon, as both families compete for the same enzymes.

A spoonful of flaxseed oil therefore provides ALA, which has its own claim, but does not replace a direct intake of EPA and DHA: someone who does not eat fatty fish will never get enough DHA from flax or walnuts.

Should you buy an omega-3-6-9 complex?

Rarely. Omega-6s are rarely lacking in almost anyone in the West: sunflower oil, corn oil, and processed foods are saturated with them. The problem is not a deficit but an excess compared to omega-3s; adding more widens the gap we wanted to correct. As for omega-9s, they are not essential: the body produces oleic acid itself. Above all, in a fixed-size bottle, every milligram of omega-6 and 9 is a milligram less of EPA and DHA — hence the almost always modest levels in these complexes.

A defensible exception: a flaxseed oil sold as 3-6-9, for a vegan person seeking ALA as a supplement — and not as a replacement — for a source of DHA, such as at TrainedByJP. To get 250 mg of EPA+DHA, take a marine omega-3 supplement.

How to read an omega-3 label?

The only line that matters: EPA and DHA per capsule

A capsule advertised as "1,000 mg of fish oil" tells you nothing. An unconcentrated oil typically contains about 18% EPA and 12% DHA: it therefore provides 180 mg of EPA and 120 mg of DHA. An oil concentrated to 60 or 70% provides two to three times more.

Look for the milligrams of EPA and DHA per capsule, multiply by the recommended dose, then compare the price per gram of EPA+DHA — never by the bottle. A €12 product that requires four capsules a day is more expensive than a €25 product that only requires one.

Triglyceride form (rTG) or ethyl ester (EE)?

Crude fish oil is naturally a triglyceride. To concentrate it, it is converted into an ethyl ester (EE), the only distillable form. The manufacturer stops there, or pays for re-esterification to revert to a re-esterified triglyceride (rTG).

Studies on bioavailability suggest better absorption of rTG, which is closer to whole fish. The difference is not spectacular, and a well-dosed EE taken with a fatty meal is still valid — but re-esterification is expensive, hence two price points for the same milligrams. A label silent on this point almost always indicates an ethyl ester.

Freshness: TOTOX index and the fish burp signal

Polyunsaturated fatty acids oxidize quickly, and an oxidized oil loses its benefit. This is measured by the peroxide value (PV), the anisidine value (pAV), and the TOTOX: (2 × PV) + pAV. The voluntary standard of GOED, the industry professional organization, sets maximums of 5 meq/kg for PV, 20 for pAV, and 26 for TOTOX. The lower, the fresher the oil.

These figures are not always published, but a signal replaces them: fishy burps. This is not a digestive inevitability; it is the signature of an oxidized oil — a fresh oil taken with a meal rarely causes burps. If a bottle makes you burp from the first week, change products.

Traceability and sustainability

Friend of the Sea and MarinTrust certify the origin and management of marine raw materials. The Norwegian concentrate EPAX®, produced in Ålesund and available in both rTG and EE, claims both certifications and complete traceability. A brand that names its oil supplier says more than a brand covered in house logos.

What dose, when, and how to store them?

The basic guideline is that of the European register: 250 mg of EPA + DHA per day. Many supplements offer 500 mg to 1 g, which remains reasonable. EFSA has concluded that intakes up to 5 g per day of combined EPA and DHA do not raise safety concerns in adults; there is no obligation to aim for this level.

Take them with a fatty meal: they are lipids, and their absorption depends on bile salts that only a fatty meal triggers. The same logic applies to other fat-soluble nutrients — vitamin D, vitamin E, coenzyme Q10, curcumin — which should be taken at the same time. The time of day matters little: consistency is what counts, over several weeks.

Storage: away from light, heat, and air — the opaque bottle is not a marketing detail, and an opened liquid oil should be kept in the refrigerator. The vitamin E added to most formulas is a useful antioxidant, not a superfluous excipient.

Which foods are rich in omega-3s?

ANSES recommends two servings of fish per week, including one fatty fish, and cites salmon, sardine, mackerel, herring, and smoked trout. This is the cheapest way to meet your intake: those who follow this guideline do not need to supplement.

On the plant side, ALA — and only ALA — is found in rapeseed oil, flax, walnuts, chia, and hemp. Exact contents can be found in the Ciqual table from ANSES, which details 18:3 (ALA), 20:5 (EPA), and 22:6 (DHA) fatty acids per 100g.

A common misconception: spirulina is not a source of EPA or DHA. The microalgae that produce them are other species, cultivated specifically for this purpose.

Frequently asked questions

What are omega-3s?

A family of polyunsaturated fatty acids that the body cannot produce and must come from the diet. Three molecules are important: ALA, the plant-based omega-3 from flax, rapeseed, and walnuts; EPA and DHA, long-chain forms from fatty fish. These latter two are targeted by European claims regarding heart, brain, and vision. They are part of the composition of all your cell membranes: it's not a stimulant, it's a building material.

When should I take omega-3s?

During a meal containing fat, and that's the only rule that really matters: they are lipids, and their absorption depends on the bile salts that a fatty meal triggers. On an empty stomach, part of the dose is lost and burping is more frequent. The time of day is irrelevant; consistency over several weeks is. Take the opportunity to take your other fat-soluble nutrients at the same time, vitamin D especially.

What are the side effects of omega-3s?

At usual doses, they are limited to digestive discomforts: fishy burps, slight nausea, loose stools at high doses. Burping deserves emphasis, as it is not inevitable: it is the signature of an oxidized oil or taking it on an empty stomach. Take the capsule in the middle of a meal, and change product if it persists. The only serious precaution concerns anticoagulant and antiplatelet treatments, as well as scheduled surgery: consult your doctor. EFSA reports no safety concerns up to 5g of EPA and DHA per day in adults.

Where can I find omega-3s?

Primarily in fatty fish: salmon, sardine, mackerel, herring, smoked trout. ANSES recommends two servings of fish per week, one of which should be fatty, and this is by far the cheapest way to meet your intake. Plants — rapeseed oil, flax, walnuts, chia, hemp — only provide ALA, whose conversion to DHA is too low to count. If fatty fish is not part of your habits, a marine oil capsule remains the simplest solution.

How much omega-3 per day, and how many capsules does that represent?

The regulatory benchmark is 250 mg of combined EPA and DHA per day. The number of capsules depends entirely on the oil's concentration: an unconcentrated oil with 18% EPA and 12% DHA provides about 300 mg per 1,000 mg capsule, meaning only one dose; a low-dose formula might require three or four. So add the milligrams of EPA and DHA displayed per capsule, then divide. Many products offer 500 mg to 1 g per day, which remains reasonable: EFSA reports no safety concerns up to 5 g in adults.

What is the best omega-3, and which brand should I choose?

No brand wins in absolute terms; three criteria are decisive. First, the milligrams of EPA and DHA per capsule, clearly displayed — a label that only gives the oil's weight is already a disqualifier. Then the form: a re-esterified triglyceride (rTG) is better absorbed than an ethyl ester, and the absence of mention almost always indicates an EE. Finally, freshness, via a published TOTOX index or, failing that, the absence of fishy burps. The rest — fish species, certifications, concentrate name — only serves to differentiate between two already good products.

Which oil contains the most omega-3s, and which fruit provides it?

Among edible oils, flaxseed oil is by far the richest, followed by walnut oil, camelina oil, and rapeseed oil. However, they only provide ALA, the plant-based omega-3, and not the EPA or DHA targeted by heart, brain, and vision claims. As for fruits, the question often comes up and the answer is disappointing: no fresh fruit is a notable source of omega-3s. Nuts and seeds — walnuts, flax, chia, hemp — contain them. Exact contents can be found in the Ciqual table from ANSES, line 18:3.

Cod liver oil or fish oil?

They are not the same products. Cod liver oil provides EPA and DHA, but also a lot of vitamins A and D — and vitamin A imposes a limit, as it accumulates. An oil from fish flesh avoids this constraint and allows vitamin D to be managed separately.

Do omega-3 supplements contain heavy metals?

Mercury accumulates mainly in fish flesh, not in its fat, and the refining of marine oils aims to eliminate fat-soluble contaminants like dioxins and PCBs. A product from small, short-lived fish — sardines, anchovies, mackerel — and properly refined presents a low risk. Vigilance is especially important for what you eat: ANSES advises varying species and origins, and advises pregnant women and young children against swordfish, marlin, shark, and lamprey.

Can omega-3s be taken with anticoagulants?

This is the most serious precaution on this page: ask your doctor before starting. Long-chain omega-3s are involved in platelet aggregation, and the question arises whenever an anticoagulant or antiplatelet treatment is ongoing, or surgery is scheduled. EFSA concludes that intakes up to 5g per day do not increase the risk of bleeding in the general population — this does not replace individual medical advice.

Do omega-3s help with weight loss or muscle gain?

No, and no European claim states this. Body composition depends on energy balance, protein, and training. Omega-3 remains a foundational supplement, both for weight loss and muscle gain.

How long before feeling anything?

Nothing perceptible, in the sense of a booster. Omega-3s modify the composition of cell membranes, a process that takes weeks. It is a foundational supplement, to be taken continuously throughout the year if you eat little fatty fish, like multivitamins or magnesium. It can be easily combined with other foundational supplements, including collagen and glucosamine; the only relevant question concerns medication, and that should be asked to your doctor or pharmacist.

What omega-3s do we offer?

Our selection favors formulas that display their milligrams of EPA and DHA per capsule rather than oil weight: IO.Genix, whose range covers a daily omega-3 and a concentrated version with a high EPA/DHA ratio, Now Foods and Swanson, or Nutriting for formulations without superfluous excipients. Our sports nutrition guide places them within a coherent program.

Where to ask for advice near Montpellier?

Comparing two bottles of omega-3s on a screen is tedious: everything comes down to two lines in small print. In our shop in Vendargues, about ten minutes from Montpellier, you can read the labels side by side and calculate the real cost per gram of EPA+DHA before buying. We ship everywhere in France and Europe.

Sources: Regulation (EU) No 432/2012 and EFSA; ANSES for fish; Ciqual for food composition.

For more information: omega-3 capsules, side effects and precautions.

View Store
Now Foods Oméga 3 Liquide Citron 500 ml
Now Foods Oméga 3 liquide citron, flacon de 500 ml
NOW Foods

Now Foods Oméga 3 Liquide Citron 500 ml

(0)

53,24 €

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.

Une question avant de commander ?

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

What are omega-3s used for, and what does European regulation say?

Omega-3s are among the very few supplements for which the European Union has validated health claims. Four are listed in the European register, each with a daily dose condition.

  • "Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) contribute to normal heart function" — effect achieved with 250 mg of EPA and DHA per day.
  • "Docosahexaenoic acid (DHA) contributes to normal brain function" — 250 mg of DHA per day.
  • "Docosahexaenoic acid (DHA) contributes to the maintenance of normal vision" — 250 mg of DHA per day.
  • "Alpha-linolenic acid (ALA) contributes to the maintenance of normal blood cholesterol levels" — 2 g of ALA per day.

The thresholds are low: 250 mg can be reached with one to two properly dosed capsules. Note that the brain and vision claims relate to DHA alone: a formula rich in EPA and low in DHA does not meet these. None of these phrases speak of treating, preventing, or curing — an omega-3 is a nutritional supplement, not a medicine, and a brand that promises more is selling you a story.

EPA, DHA, ALA: why is plant-based omega-3 not enough?

Three very different molecules are hidden behind the word. ALA (alpha-linolenic acid) is the plant-based omega-3 found in flax, rapeseed, walnuts, and chia. EPA and DHA are the long-chain forms found in fatty fish and certain microalgae. Only these two are targeted by the cardiac, brain, and vision claims.

The decisive point, rarely stated clearly: the body converts ALA into EPA then into DHA, but very inefficiently. Conversion to EPA is only a few percent of the ingested ALA, and conversion to DHA is even lower, often negligible in adults — and an excess of omega-6 exacerbates the phenomenon, as both families compete for the same enzymes.

A spoonful of flaxseed oil therefore provides ALA, which has its own claim, but does not replace a direct intake of EPA and DHA: someone who does not eat fatty fish will never get enough DHA from flax or walnuts.

Should you buy an omega-3-6-9 complex?

Rarely. Omega-6s are rarely lacking in almost anyone in the West: sunflower oil, corn oil, and processed foods are saturated with them. The problem is not a deficit but an excess compared to omega-3s; adding more widens the gap we wanted to correct. As for omega-9s, they are not essential: the body produces oleic acid itself. Above all, in a fixed-size bottle, every milligram of omega-6 and 9 is a milligram less of EPA and DHA — hence the almost always modest levels in these complexes.

A defensible exception: a flaxseed oil sold as 3-6-9, for a vegan person seeking ALA as a supplement — and not as a replacement — for a source of DHA, such as at TrainedByJP. To get 250 mg of EPA+DHA, take a marine omega-3 supplement.

How to read an omega-3 label?

The only line that matters: EPA and DHA per capsule

A capsule advertised as "1,000 mg of fish oil" tells you nothing. An unconcentrated oil typically contains about 18% EPA and 12% DHA: it therefore provides 180 mg of EPA and 120 mg of DHA. An oil concentrated to 60 or 70% provides two to three times more.

Look for the milligrams of EPA and DHA per capsule, multiply by the recommended dose, then compare the price per gram of EPA+DHA — never by the bottle. A €12 product that requires four capsules a day is more expensive than a €25 product that only requires one.

Triglyceride form (rTG) or ethyl ester (EE)?

Crude fish oil is naturally a triglyceride. To concentrate it, it is converted into an ethyl ester (EE), the only distillable form. The manufacturer stops there, or pays for re-esterification to revert to a re-esterified triglyceride (rTG).

Studies on bioavailability suggest better absorption of rTG, which is closer to whole fish. The difference is not spectacular, and a well-dosed EE taken with a fatty meal is still valid — but re-esterification is expensive, hence two price points for the same milligrams. A label silent on this point almost always indicates an ethyl ester.

Freshness: TOTOX index and the fish burp signal

Polyunsaturated fatty acids oxidize quickly, and an oxidized oil loses its benefit. This is measured by the peroxide value (PV), the anisidine value (pAV), and the TOTOX: (2 × PV) + pAV. The voluntary standard of GOED, the industry professional organization, sets maximums of 5 meq/kg for PV, 20 for pAV, and 26 for TOTOX. The lower, the fresher the oil.

These figures are not always published, but a signal replaces them: fishy burps. This is not a digestive inevitability; it is the signature of an oxidized oil — a fresh oil taken with a meal rarely causes burps. If a bottle makes you burp from the first week, change products.

Traceability and sustainability

Friend of the Sea and MarinTrust certify the origin and management of marine raw materials. The Norwegian concentrate EPAX®, produced in Ålesund and available in both rTG and EE, claims both certifications and complete traceability. A brand that names its oil supplier says more than a brand covered in house logos.

What dose, when, and how to store them?

The basic guideline is that of the European register: 250 mg of EPA + DHA per day. Many supplements offer 500 mg to 1 g, which remains reasonable. EFSA has concluded that intakes up to 5 g per day of combined EPA and DHA do not raise safety concerns in adults; there is no obligation to aim for this level.

Take them with a fatty meal: they are lipids, and their absorption depends on bile salts that only a fatty meal triggers. The same logic applies to other fat-soluble nutrients — vitamin D, vitamin E, coenzyme Q10, curcumin — which should be taken at the same time. The time of day matters little: consistency is what counts, over several weeks.

Storage: away from light, heat, and air — the opaque bottle is not a marketing detail, and an opened liquid oil should be kept in the refrigerator. The vitamin E added to most formulas is a useful antioxidant, not a superfluous excipient.

Which foods are rich in omega-3s?

ANSES recommends two servings of fish per week, including one fatty fish, and cites salmon, sardine, mackerel, herring, and smoked trout. This is the cheapest way to meet your intake: those who follow this guideline do not need to supplement.

On the plant side, ALA — and only ALA — is found in rapeseed oil, flax, walnuts, chia, and hemp. Exact contents can be found in the Ciqual table from ANSES, which details 18:3 (ALA), 20:5 (EPA), and 22:6 (DHA) fatty acids per 100g.

A common misconception: spirulina is not a source of EPA or DHA. The microalgae that produce them are other species, cultivated specifically for this purpose.

Frequently asked questions

What are omega-3s?

A family of polyunsaturated fatty acids that the body cannot produce and must come from the diet. Three molecules are important: ALA, the plant-based omega-3 from flax, rapeseed, and walnuts; EPA and DHA, long-chain forms from fatty fish. These latter two are targeted by European claims regarding heart, brain, and vision. They are part of the composition of all your cell membranes: it's not a stimulant, it's a building material.

When should I take omega-3s?

During a meal containing fat, and that's the only rule that really matters: they are lipids, and their absorption depends on the bile salts that a fatty meal triggers. On an empty stomach, part of the dose is lost and burping is more frequent. The time of day is irrelevant; consistency over several weeks is. Take the opportunity to take your other fat-soluble nutrients at the same time, vitamin D especially.

What are the side effects of omega-3s?

At usual doses, they are limited to digestive discomforts: fishy burps, slight nausea, loose stools at high doses. Burping deserves emphasis, as it is not inevitable: it is the signature of an oxidized oil or taking it on an empty stomach. Take the capsule in the middle of a meal, and change product if it persists. The only serious precaution concerns anticoagulant and antiplatelet treatments, as well as scheduled surgery: consult your doctor. EFSA reports no safety concerns up to 5g of EPA and DHA per day in adults.

Where can I find omega-3s?

Primarily in fatty fish: salmon, sardine, mackerel, herring, smoked trout. ANSES recommends two servings of fish per week, one of which should be fatty, and this is by far the cheapest way to meet your intake. Plants — rapeseed oil, flax, walnuts, chia, hemp — only provide ALA, whose conversion to DHA is too low to count. If fatty fish is not part of your habits, a marine oil capsule remains the simplest solution.

How much omega-3 per day, and how many capsules does that represent?

The regulatory benchmark is 250 mg of combined EPA and DHA per day. The number of capsules depends entirely on the oil's concentration: an unconcentrated oil with 18% EPA and 12% DHA provides about 300 mg per 1,000 mg capsule, meaning only one dose; a low-dose formula might require three or four. So add the milligrams of EPA and DHA displayed per capsule, then divide. Many products offer 500 mg to 1 g per day, which remains reasonable: EFSA reports no safety concerns up to 5 g in adults.

What is the best omega-3, and which brand should I choose?

No brand wins in absolute terms; three criteria are decisive. First, the milligrams of EPA and DHA per capsule, clearly displayed — a label that only gives the oil's weight is already a disqualifier. Then the form: a re-esterified triglyceride (rTG) is better absorbed than an ethyl ester, and the absence of mention almost always indicates an EE. Finally, freshness, via a published TOTOX index or, failing that, the absence of fishy burps. The rest — fish species, certifications, concentrate name — only serves to differentiate between two already good products.

Which oil contains the most omega-3s, and which fruit provides it?

Among edible oils, flaxseed oil is by far the richest, followed by walnut oil, camelina oil, and rapeseed oil. However, they only provide ALA, the plant-based omega-3, and not the EPA or DHA targeted by heart, brain, and vision claims. As for fruits, the question often comes up and the answer is disappointing: no fresh fruit is a notable source of omega-3s. Nuts and seeds — walnuts, flax, chia, hemp — contain them. Exact contents can be found in the Ciqual table from ANSES, line 18:3.

Cod liver oil or fish oil?

They are not the same products. Cod liver oil provides EPA and DHA, but also a lot of vitamins A and D — and vitamin A imposes a limit, as it accumulates. An oil from fish flesh avoids this constraint and allows vitamin D to be managed separately.

Do omega-3 supplements contain heavy metals?

Mercury accumulates mainly in fish flesh, not in its fat, and the refining of marine oils aims to eliminate fat-soluble contaminants like dioxins and PCBs. A product from small, short-lived fish — sardines, anchovies, mackerel — and properly refined presents a low risk. Vigilance is especially important for what you eat: ANSES advises varying species and origins, and advises pregnant women and young children against swordfish, marlin, shark, and lamprey.

Can omega-3s be taken with anticoagulants?

This is the most serious precaution on this page: ask your doctor before starting. Long-chain omega-3s are involved in platelet aggregation, and the question arises whenever an anticoagulant or antiplatelet treatment is ongoing, or surgery is scheduled. EFSA concludes that intakes up to 5g per day do not increase the risk of bleeding in the general population — this does not replace individual medical advice.

Do omega-3s help with weight loss or muscle gain?

No, and no European claim states this. Body composition depends on energy balance, protein, and training. Omega-3 remains a foundational supplement, both for weight loss and muscle gain.

How long before feeling anything?

Nothing perceptible, in the sense of a booster. Omega-3s modify the composition of cell membranes, a process that takes weeks. It is a foundational supplement, to be taken continuously throughout the year if you eat little fatty fish, like multivitamins or magnesium. It can be easily combined with other foundational supplements, including collagen and glucosamine; the only relevant question concerns medication, and that should be asked to your doctor or pharmacist.

What omega-3s do we offer?

Our selection favors formulas that display their milligrams of EPA and DHA per capsule rather than oil weight: IO.Genix, whose range covers a daily omega-3 and a concentrated version with a high EPA/DHA ratio, Now Foods and Swanson, or Nutriting for formulations without superfluous excipients. Our sports nutrition guide places them within a coherent program.

Where to ask for advice near Montpellier?

Comparing two bottles of omega-3s on a screen is tedious: everything comes down to two lines in small print. In our shop in Vendargues, about ten minutes from Montpellier, you can read the labels side by side and calculate the real cost per gram of EPA+DHA before buying. We ship everywhere in France and Europe.

Sources: Regulation (EU) No 432/2012 and EFSA; ANSES for fish; Ciqual for food composition.

For more information: omega-3 capsules, side effects and precautions.

Sources

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

Questions fréquentes — Omega 3

Les oméga 3, c'est quoi ?

Une famille d'acides gras polyinsaturés que l'organisme ne sait pas fabriquer et qui doivent venir de l'alimentation. Trois molécules comptent : l'ALA, oméga 3 végétal du lin, du colza et des noix ; l'EPA et le DHA, formes à longue chaîne du poisson gras. Ce sont ces deux dernières que visent les allégations européennes sur le cœur, le cerveau et la vision. Ils entrent dans la composition des membranes de toutes vos cellules : c'est un matériau de construction, pas un stimulant.

Quand prendre les oméga 3 ?

Pendant un repas contenant des matières grasses, et c'est la règle principale : ce sont des lipides, leur absorption dépend des sels biliaires qu'un repas gras déclenche. L'heure de la journée n'a pas d'importance ; la régularité sur plusieurs semaines, si. Profitez-en pour prendre au même moment vos autres nutriments liposolubles, vitamine D en tête.

Quels sont les effets secondaires des oméga 3 ?

Aux doses usuelles, ils se limitent à des désagréments digestifs : renvois au goût de poisson, légère nausée, selles molles à forte dose. Le renvoi signe une huile oxydée ou une prise à jeun : la capsule prise au milieu d'un repas, avec une huile fraîche, règle généralement la question. La précaution principale concerne les traitements anticoagulants et antiagrégants, ainsi qu'une intervention chirurgicale programmée : demandez alors l'avis de votre médecin. L'EFSA ne signale pas de préoccupation de sécurité jusqu'à 5 g d'EPA et DHA par jour chez l'adulte.

Où trouver des oméga 3 ?

Dans le poisson gras avant tout : saumon, sardine, maquereau, hareng, truite fumée. L'ANSES recommande deux portions de poisson par semaine dont une grasse. Les végétaux — huile de colza, lin, noix, chia, chanvre — n'apportent que de l'ALA, dont la conversion en DHA est trop faible pour être comptée. Si le poisson gras ne fait pas partie de vos habitudes, une capsule d'huile marine est la solution la plus simple.

Combien d'oméga 3 faut-il par jour, et combien de capsules cela représente-t-il ?

Le repère réglementaire est de 250 mg d'EPA et de DHA cumulés par jour. Le nombre de capsules dépend de la concentration de l'huile : une huile titrant 18 % d'EPA et 12 % de DHA en apporte environ 300 mg par capsule de 1 000 mg, soit une seule prise ; une formule plus légère en demande trois ou quatre. Additionnez donc les milligrammes d'EPA et de DHA affichés par capsule, puis divisez. Beaucoup de produits proposent 500 mg à 1 g par jour, ce qui reste raisonnable : l'EFSA ne signale pas de préoccupation de sécurité jusqu'à 5 g chez l'adulte.

Quel est le meilleur oméga 3, et quelle marque choisir ?

Trois critères tranchent. D'abord les milligrammes d'EPA et de DHA par capsule, affichés noir sur blanc : c'est la ligne décisive. Ensuite la forme : un triglycéride reconstitué (rTG) est mieux assimilé qu'un ester éthylique, et l'absence de mention correspond généralement à un EE. Enfin la fraîcheur, via un indice TOTOX publié ou, à défaut, l'absence de renvois au goût de poisson. Le reste — espèce de poisson, certifications, nom du concentré — départage deux produits déjà corrects.

Quelle huile contient le plus d'oméga 3, et quel fruit en apporte ?

Parmi les huiles alimentaires, l'huile de lin est de loin la plus riche, devant l'huile de noix, l'huile de cameline et l'huile de colza. Elles n'apportent toutefois que de l'ALA, l'oméga 3 végétal, et non l'EPA ni le DHA visés par les allégations cardiaque, cérébrale et visuelle. Côté fruits, ce sont les fruits à coque et les graines — noix, lin, chia, chanvre — qui en contiennent, les fruits frais n'en étant pas une source notable. Les teneurs exactes se lisent sur la table Ciqual de l'ANSES, ligne 18:3.

Huile de foie de morue ou huile de poisson ?

Ce ne sont pas les mêmes produits. L'huile de foie de morue apporte de l'EPA et du DHA, mais aussi beaucoup de vitamines A et D — et la vitamine A impose une limite, puisqu'elle s'accumule. Une huile issue de la chair évite cette contrainte et laisse gérer la vitamine D séparément.

Les compléments d'oméga 3 contiennent-ils des métaux lourds ?

Le mercure s'accumule surtout dans la chair du poisson, pas dans sa graisse, et le raffinage des huiles marines vise à éliminer les contaminants liposolubles comme les dioxines et les PCB. Un produit issu de petits poissons à cycle court — sardine, anchois, maquereau — et correctement raffiné présente un risque faible. La vigilance vaut surtout pour l'assiette : l'ANSES conseille de varier espèces et provenances, et déconseille aux femmes enceintes et aux jeunes enfants l'espadon, le marlin, le requin et la lamproie.

Peut-on prendre des oméga 3 sous anticoagulant ?

C'est la précaution la plus importante de cette page : demandez à votre médecin avant de commencer. Les oméga 3 à longue chaîne interviennent dans l'agrégation plaquettaire, et la question se pose dès qu'un traitement anticoagulant ou antiagrégant est en cours, ou qu'une intervention est programmée. L'EFSA conclut que des apports jusqu'à 5 g par jour n'augmentent pas le risque hémorragique en population générale — cela ne remplace pas un avis médical individuel.

Les oméga 3 aident-ils à perdre du poids ou à prendre du muscle ?

Les allégations européennes portent sur le cœur, le cerveau et la vision. La composition corporelle dépend du bilan énergétique, des protéines et de l'entraînement : l'oméga 3 est un complément de fond, utile toute l'année, en perte de poids comme en prise de masse.

Combien de temps avant de sentir quelque chose ?

Les oméga 3 modifient la composition des membranes cellulaires, un processus qui se compte en semaines. C'est un complément de fond, à prendre en continu toute l'année si vous mangez peu de poisson gras, comme des multivitamines ou du magnésium. Il s'associe sans difficulté aux autres compléments de fond, collagène et glucosamine compris ; pour une question liée à un traitement médicamenteux, l'avis de votre médecin reste la référence.