Magnesium bisglycinate: what makes it different
Magnesium bisglycinate, also known as diglycinate, is magnesium bound to 2 glycine molecules. It is one of the magnesium salts with several distinctive properties that may give it an advantage over some other forms. Below are the main differences and possible reasons to choose it:
| Typical form | Main properties / drawbacks | How magnesium bisglycinate stands out |
|---|---|---|
| Magnesium oxide | High elemental magnesium content but poor absorption; may have a laxative effect | Bisglycinate has the potential for better absorption than oxide Wikipedia+1 |
| Magnesium citrate / magnesium chloride / magnesium nitrate and similar salts | Good solubility and absorption, but excessive doses may cause gastrointestinal irritation or have a laxative effect | Bisglycinate is generally “gentler” on the digestive system and less likely to irritate the intestines |
| Diglycinate / bisglycinate | Good bioavailability, gentle on the digestive system, potentially better tolerated Healthline+2Metis Supplements+2 | This is precisely why magnesium bisglycinate is often chosen by people who want magnesium but wish to avoid diarrhea or digestive discomfort |
| Other chelated forms (such as other magnesium chelates) | Similar aims: better absorption and stability | Bisglycinate is among the widely studied chelated forms |
Potential benefits of Magnus REX300 (depending on quality and form):
- High bioavailability / better absorption – binding magnesium to the amino acid glycine may help it pass more readily from the intestine through the intestinal lining. Healthline+3Metis Supplements+3Seeking Health+3
- Gentle on the digestive system – less likely to cause diarrhea or gas than some soluble forms.
- A reasonable proportion of elemental magnesium – although some forms may contain a higher proportion of elemental magnesium by weight, how much you actually absorb also matters.
- Suitable for daily use, even if you have a sensitive digestive system.
That said, not all forms are equal. Effectiveness ultimately depends on product quality (purity, additives and manufacturing process), the dose and the condition of your gastrointestinal tract. A review of the scientific literature shows that magnesium absorption can vary considerably between forms. ScienceDirect+1
Remember, too, that supplements do not replace a varied diet, and you must not exceed the recommended daily dose.
The Biofarmacija product page also lists some more specific features of Magnus REX300:
- The product is pure magnesium bisglycinate in powder form, packaged in 28 individual doses (a separate sachet for each day), making it convenient to use.
- Stated dose: 300 mg of magnesium / day (providing ~80 % of the NRV).
- The product contains no chemical additives: no artificial flavors, colors, preservatives, thickeners or stabilizers.
- The product information describes it as “easily absorbed; does not irritate the stomach.”
These specific features — purity, appropriate dosing, the absence of additives and a gentle effect — are reasons why this particular product may stand out on the market.
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