2 x £20.22
2 x £20.22
Product code: ONE051
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£19.99
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Pure magnesium bisglycinate — also known as magnesium glycinate. High in magnesium: 154mg (41% RI) per 2 capsules, 231mg (61.6%) per 3. Find Out More
Pure magnesium bisglycinate — also sold as magnesium glycinate. One ingredient, one capsule shell, nothing else.
There isn't one. They are two names for the same compound.
"Bisglycinate" is the chemically precise name: bis means two, and the magnesium is bound to two molecules of glycine. "Glycinate" is the shortened form that most brands and most shoppers use. If you have been looking for magnesium glycinate, this is it.
You may also see it written as magnesium bisglycinate chelate, magnesium diglycinate, or magnesium glycine chelate. All describe the same magnesium-and-glycine compound.
Magnesium never appears on its own in a supplement. It is a reactive metal, so it always arrives bound to something else — an oxide, a citrate, a carbonate, or in this case an amino acid. What it is bound to is the single biggest difference between magnesium products on a shelf.
Chelation means the magnesium is held within an organic molecule rather than paired with a simple inorganic salt. Here, two glycine molecules wrap around each magnesium ion. Glycine is the smallest of the amino acids and a normal component of dietary protein.
One practical consequence: the compound is heavy relative to the magnesium inside it. Each capsule provides 77mg of elemental magnesium, and the rest of the capsule weight is the glycine carrier. This is why, when comparing magnesium supplements, the figures that matter are the elemental magnesium and the %RI — never the large milligram number on the front of the jar, which usually describes the compound rather than the mineral.
Glycinate is the form most often chosen by people who have not got on well with other magnesium supplements. Magnesium in any form draws water into the bowel at higher intakes, which is why magnesium has a long-standing reputation as a laxative — and why some people abandon it. Simpler magnesium salts tend to produce that effect at lower intakes than chelated forms do.
It is also the form usually chosen by people taking magnesium in the evening, and by anyone who prefers a supplement with a short ingredient list. This one has two lines on it.
Magnesium is involved in a very large number of enzymatic processes — the figure usually quoted is over 300. Specifically, and as authorised claims, magnesium contributes to:
One Nutrition makes two pure magnesium supplements. They suit different people.
This one — Pure Magnesium Bisglycinate (Glycinate). Chelated to glycine. A lower elemental dose per capsule, and the form usually chosen by people who have found other magnesium supplements hard on their digestion. 90 capsules.
Ocean Magnesium. Magnesium hydroxide extracted from sea water, delivering a much higher elemental dose — 360mg (96% RI) from 2 capsules. The choice if you want a high dose from fewer capsules. 60 capsules.
Two to three capsules daily.
Magnesium can have a laxative effect at higher intakes. If you are moving from two capsules to three, build up gradually, and take account of any other magnesium you may be getting from a multivitamin or other supplement.
Is magnesium bisglycinate the same as magnesium glycinate?
Yes. Identical compound, two names. "Bisglycinate" is the technically precise term; "glycinate" is the common shorthand.
Two capsules or three?
Two is the standard serving and already makes the product high in magnesium. Three raises the intake to 61.6% of the Reference Intake. Start at two.
Why is the magnesium figure smaller than the compound weight?
Because the compound weight includes the two glycine molecules the magnesium is bound to. The magnesium itself is 77mg per capsule. This is normal for chelated minerals and is why %RI is the figure worth comparing between products.
How does it compare to magnesium citrate or oxide?
Citrate and oxide are inorganic salts; bisglycinate is an amino acid chelate. Oxide carries the most magnesium per milligram of compound, citrate sits in between, and bisglycinate the least — which is why chelated products need a larger capsule or more of them to reach the same %RI.
What is glycine?
The smallest of the twenty amino acids, and a normal part of dietary protein. Here it acts as the carrier the magnesium is bound to.
Can I take it with food?
Yes. With or without.
How long will a jar last?
90 capsules — 45 days at two a day, or 30 days at three.
Does it contain anything else?
Magnesium bisglycinate and a vegetarian HPMC capsule shell. That is the complete list.
Magnesium bisglycinate. Capsule shell: HPMC (hydroxypropyl methylcellulose).
Vegans and vegetarians. Free from gluten, soy and dairy.
1 Magnesium contributes to a reduction of tiredness and fatigue, to electrolyte balance, to normal energy-yielding metabolism, to the normal functioning of the nervous system, to normal muscle function, to normal protein synthesis, to normal psychological function, and to the maintenance of normal bones and teeth. It also has a role in the process of cell division.
High in magnesium: contains at least 30% of the Reference Intake per serving.
Food supplements should not be used as a substitute for a varied, balanced diet or a healthy lifestyle. Do not exceed the recommended daily dose. Keep out of the reach of children. Consult a healthcare professional if you are pregnant or breastfeeding, have a medical condition, or are taking medication.