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French quality at a fair price
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Magnesium Bisglycinate Supernutrition

Magnesium Bisglycinate

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Made in France

High-absorption Magnesium Bisglycinate. Helps reduce fatigue and stress. Made in France.

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Energy & vitality

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Muscle comfort

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Anti-stress & serenity

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High digestive tolerance

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270 mg of elemental magnesium + Vitamin B6

120 capsules. 40-day course. | Best before 11/27

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Omega-3 EPAX®

21,90€

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For what purposes?

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ENERGY & VITALITY

Magnesium and vitamin B6 contribute to reducing fatigue and to normal energy metabolism.

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RESTFUL SLEEP

By promoting relaxation of the nervous system, magnesium prepares your body for better quality sleep, essential for recovery and waking up feeling great.

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SERENITY & ANTI-STRESS

Magnesium contributes to normal psychological functions, promoting relaxation and resistance to stress.

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MUSCLE COMFORT

Magnesium contributes to normal muscle function, ideal in case of cramps or tension.

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BODY & MIND SYNERGY

The magnesium-B6 combination contributes to the overall proper functioning of your nervous system and your balance.

Premium quality

Only ingredients
premium.

What they think of Supernutrition

Join over 10,000 satisfied users

Verified Buyer

Super Magnesium with excellent absorption. As a replacement for marine magnesium, this is significantly more effective for sleep and stress.

Patrick C.

P

Verified Buyer

This product gives me complete satisfaction because it allows me to sleep very well. I feel much less tired, I hardly ever suffer from cramps anymore, in short, I have a better quality of life.

Caroline L.

C

Verified Buyer

I had some doubts about the bisglycinate formula, but after my email, my doubts were cleared up... I take it in the evening, and my sleep has improved, I'm less tired, and I haven't had any intestinal problems 👍

Nathalie M.

N

Verified Buyer

Very effective from the first few days with 3 capsules per day. My cramps and eye twitching disappeared quickly. Magnesium bisglycinate is well tolerated, without any intestinal discomfort. Thank you for this quality product.

Dominique G.

D

Verified Buyer

Regarding Magnesium Bisglycinate, several naturopathic professionals, herbalists and functional doctors have confirmed to me that this is indeed its most assimilable form and that it is very well dosed.

Geneviève E.

G

Verified Buyer

Super magnesium, impeccable composition with the best form of magnesium and B6.

Mervyn G.

M
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VEGETABLE PILL BOTTLE

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100% VEGAN

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WITHOUT EXCIPIENTS

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GLUTEN-FREE

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LACTOSE FREE

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MADE IN FRANCE

Magnesium Bisglycinate + Vit. B6

Quality and efficiency above all.

Magnesium bisglycinate Supernutrition.fr

EFFICIENCY

Highly absorbed, latest generation magnesium, very well tolerated by the digestive system.


DIGESTIVE COMFORT

Magnesium bisglycinate does not have a laxative effect, unlike some other forms of magnesium (marine, citrate, etc.).


BIOACTIVE VITAMIN B6

Bioactive vitamin B6 enhances the effectiveness of magnesium. It increases cellular absorption.


PLANT-BASED AND NATURAL

The pullulan capsule, derived from tapioca, is the most natural capsule on the market. It is guaranteed to be free of chemicals and solvents.


100% CLEAN FORMULA

This magnesium is designed to serve you, not to harm you. We never use colorings, preservatives, or controversial additives.

Magnesium according to your needs

Ideal for regaining energy during seasonal changes or intense periods.

  • Who is it for? Active people, students during exam periods, or anyone experiencing a persistent drop in energy and a feeling of exhaustion upon waking.

  • Dosage: 4 capsules per day (i.e. 270 mg of elemental magnesium).

  • Timing: Divide the doses: 2 capsules at breakfast and 2 capsules at lunch. Taking magnesium with meals improves overall absorption along with other nutrients.

  • Duration: 1 to 2 month course of treatment. To be repeated 2 to 3 times a year, particularly in the autumn and at the end of winter.

Magnesium bisglycinate is coupled with glycine, an amino acid that promotes brain relaxation.

  • Who is it for? For those who have difficulty falling asleep, who wake up during the night or who suffer from a "restless mind" (rumination) before sleeping.
  • Dosage: 3 capsules per day.
  • Timing: To be taken all at once, about 1 hour before bedtime, ideally with a glass of water or a relaxing herbal tea.
  • Duration: As a 4-week course to recalibrate sleep cycles, or occasionally during periods of intense stress.

Regulates cortisol (stress hormone) and supports normal psychological functions.

  • For whom? In cases of irritability, hypersensitivity to noise/stress, eyelid twitching (a classic sign of deficiency) or a feeling of "overwork" (burnout).
  • Dosage: 4 capsules per day to maintain optimal intracellular magnesium levels.
  • Timing: Divide the dose: 1 capsule with each meal (morning, noon, afternoon snack, and evening). This continuous release helps to smooth out mood throughout the day.
  • Duration: A 3-month intensive course is recommended. The nervous system requires long-term supplementation to stabilize.

Promotes muscle fiber relaxation and prevents electrolyte imbalances.

  • Who is it for? Athletes (endurance, bodybuilding), people suffering from nighttime cramps, muscle contractions or restless legs syndrome.
  • Dosage: 4 to 5 capsules per day, depending on the intensity of physical activity and sweating (loss of minerals).
  • Timing: 2 capsules right after training (to stop acidity and relax muscles) and the rest during the last meal of the day.
  • Duration: As a 15-day course after a competition, or continuously for athletes with more than 3 training sessions per week.

Ingredients

We select high-quality raw materials.

Compléments alimentaire supernutrition

Magnesium

In bisglycinate form

Magnesium bisglycinate is a formula based on magnesium and glycine. It offers excellent bioavailability for the body. Another advantage is that it is very gentle on the intestines, unlike other forms of magnesium.

Complements alimentaires

Vitamin B6

Bioactive (P5P)

We use the P-5-P form, which is directly activated by the body. It facilitates the entry of magnesium into your cells and, like magnesium, contributes to normal psychological functions.

Free delivery on orders over €60

Same-day dispatch (orders placed before 3pm)

Recommendations & Frequently Asked Questions

Why and how to take a magnesium supplement?

A course of magnesium supplements aims to address a deficiency often caused by stress or a modern diet. It helps reduce fatigue, irritability, and muscle tension (cramps). It is a key support for restoring restful sleep and a calmer nervous system.

For more information, check out our guide on why and how to take magnesium .

What are the proven benefits of magnesium?

Here are 7 major benefits of magnesium proven by science:

  • Fatigue reduction
  • Nervous system support and stress management
  • Cramp prevention and muscle support
  • Sleep improvement
  • Bone health
  • Blood pressure regulation and cardiovascular health
  • Blood sugar regulation aid

Scientific sources:

  • The effect of magnesium supplementation on primary insomnia in elderly”, 2012, https://pubmed.ncbi.nlm.nih.gov/23853635/
  • Magnesium supplementation in pregnancy”, 2014, https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD000937.pub2/full
  • “Magnesium and Muscle Performance in Older Adults,” 2019, https://www.mdpi.com/2072-6643/11/2/364.
  • “Scientific Opinion on the substantiation of health claims related to magnesium”, https://www.efsa.europa.eu/en/efsajournal/pub/1216
How long does it take for magnesium to take effect?

Are you wondering about the time it takes for magnesium to work? The first benefits can be felt in a few days , but it takes about 2 to 4 weeks for a course of treatment to produce lasting effects.

Here are the key points to remember:

  • Rapid effects (a few hours to a few days): relief from muscle cramps and a feeling of relaxation facilitating sleep.
  • Intermediate effects (1 to 4 weeks): noticeable reduction in stress, anxiety and overall fatigue.
  • Prolonged effects (beyond 1 month): replenishment of reserves, deep support of the nervous system and bone strength.
What are the signs of a magnesium deficiency?

The most common signs are physical and neurological. Think of unexplained fatigue, muscle cramps, or the dreaded eyelid twitch.

On a mental level, increased anxiety, greater irritability, and disturbed sleep are frequent warning signs. These symptoms often act in concert.

Are there any major contraindications to Magnesium Bisglycinate?

Yes. The main contraindication is severe renal insufficiency . Since magnesium is eliminated by the kidneys, impaired kidney function can lead to an accumulation of this mineral in the body (hypermagnesemia).

If you suffer from kidney disease , you must consult your doctor before taking any supplements. Similarly, this product is not recommended for people suffering from myasthenia gravis .

What scientific sources prove the superiority of your Magnesium?

The effectiveness of our Magnesium rests on two scientific pillars: the Bisglycinate form (chelation) and the synergy with active Vitamin B6 (P-5-P) . Here are the reference studies that validate our formulation:

  • Superior bioavailability: Unlike classic salts (oxide, chloride), bisglycinate is a chelated form that uses dipeptide transporters in the intestine, allowing much higher absorption by the body (Source: https://pubmed.ncbi.nlm.nih.gov/11794633/).
  • Total digestive tolerance: Clinical research demonstrates that bisglycinate does not cause laxative effects, as it is stable and does not create water retention in the intestines, unlike low-grade magnesium (Source: https://www.mdpi.com/2072-6643/16/24/4367).
  • Increased effectiveness against stress: A major study has proven that the combination of Magnesium + Vitamin B6 is 24% more effective than magnesium alone in reducing the symptoms of severe stress (Source: https://pmc.ncbi.nlm.nih.gov/articles/PMC6298677/).
Can magnesium be consumed all year round?

According to the SU.VI.MAX study, nearly 75% of men and 77% of women have intakes below the recommended daily allowance (RDA). Magnesium can be taken year-round as a preventative measure, particularly by athletes. A minimum 3-month course is recommended.

Why combine vitamin B6 with magnesium?

Vitamin B6 is involved in the synthesis of neurotransmitters such as serotonin (sleep, mood) and in maintaining a balanced nervous system. It also helps increase magnesium absorption.

Can this magnesium be combined with other vitamins (such as Vitamin D)?

Yes, the combination is even highly recommended for optimal effectiveness.

Magnesium + Vitamin D Synergy: Magnesium is essential for activating Vitamin D in the blood. Without sufficient magnesium intake, your Vitamin D supplementation is less effective.

Synergy with Vitamin B6: Our formula already contains bioactive Vitamin B6 (P5P) to facilitate the entry of magnesium into the cell.

To avoid: Avoid taking it simultaneously with iron or high doses of calcium, as they may compete during intestinal absorption.

Why choose magnesium bisglycinate rather than marine magnesium?

Unlike marine magnesium (oxide), which is poorly absorbed and can have a laxative effect, bisglycinate is bound to an amino acid (glycine). This ensures maximum absorption by cells and perfect digestive tolerance, without intestinal discomfort.

Does magnesium bisglycinate cause weight gain?

No, magnesium does not cause weight gain. On the contrary, it plays a key role in carbohydrate metabolism and insulin regulation.

  • Calories: A magnesium supplement provides a caloric value close to zero.
  • Weight management: By helping to reduce stress (cortisol) and improve sleep quality, it can indirectly facilitate weight management and limit emotional snacking.
  • Water retention: Contrary to some misconceptions, it helps with electrolyte balance, which is beneficial against water retention.
Can you take magnesium in the evening to sleep better?

Yes, because it promotes nervous and muscular relaxation. Bisglycinate is particularly recommended before bedtime.

Source 2025: https://www.wbcil.com/blog/the-glycine-advantage-how-new-pubmed-research-reveals-magnesium-bisglycinates-untapped-potential/

Is it compatible with intensive sports practice?

Athletes lose magnesium through sweat. It is crucial for preventing cramps and optimizing recovery.

Is your magnesium bisglycinate 'unbuffered'?

Yes. Many brands sell magnesium labeled 'bisglycinate' which is actually mixed with magnesium oxide (cheaper) to increase the percentage of pure magnesium. Ours is 100% pure bisglycinate, with no hidden additives.

Is magnesium recommended in cases of work-related stress?

Stress depletes magnesium reserves, creating a vicious cycle. A course of treatment helps regulate cortisol.

Is this dietary supplement analyzed by a laboratory?

All our food supplements are manufactured in France by an ISO 22000 certified laboratory. All raw materials are inspected and analyzed. We provide you with certificates of analysis that attest to the quality of our products.

Does this dietary supplement contain allergens?

Our magnesium supplement contains no allergens such as soy, gluten, lactose, or eggs. It is suitable for vegans.

What is the difference between your magnesium and the one sold in pharmacies?

The major difference lies in the chemical form and purity . Most supplements sold in pharmacies use magnesium oxide or magnesium citrate (which is less expensive).

  • Bioavailability: Our Bisglycinate (chelated) form is absorbed at a rate of 80% by the body, compared to only 4 to 20% for conventional pharmacy forms.
  • Digestive comfort: Unlike pharmacy magnesium, which is often laxative, bisglycinate is perfectly tolerated by sensitive intestines.
  • 100% Unbuffered: Unlike many commercial products, we do not add hidden oxides to artificially "inflate" the elemental magnesium content.
Why do you use pullulan capsules rather than HPMC vegetable capsules?

Pullulan capsules are sought after by the most discerning consumers, who are looking for a more natural product. Pullulan is a natural polysaccharide made from tapioca starch. It is guaranteed to be free of chemicals, solvents, preservatives, and allergens.