Magnesium: which form?
Form changes absorption and tolerability, not whether the evidence holds. Here's the plain comparison.
| Form | What to know |
|---|---|
| Magnesium glycinate | well absorbed, gentle on the gut; popular for sleep |
| Magnesium citrate | well absorbed; mild laxative effect at higher doses |
| Magnesium oxide | poorly absorbed; mostly used as a laxative |