Magnesium Glycinate vs Malate: Which Is Better for You?
Both are organic forms of magnesium that are generally well absorbed and gentle on the stomach. Glycinate is usually taken in the evening and is popular for relaxation and sleep. Malate, bound to malic acid, is often taken in the daytime and marketed for energy and muscle pain, though evidence for those specific claims is weak. Either works for raising magnesium intake.
Magnesium glycinate vs malate comes down to timing and personal preference more than chemistry. Glycinate and malate are two of the "gentle" magnesium forms. The difference between them is the molecule magnesium is attached to, and what that's marketed to do.
Side-by-side
| Magnesium glycinate | Magnesium malate | |
|---|---|---|
| Bound to | Glycine (amino acid) | Malic acid (found in fruit) |
| Absorption | Good | Good |
| Gut tolerance | Very gentle | Gentle |
| Popular use | Evening, relaxation, sleep | Daytime, energy, muscle aches |
| Evidence for the specific claim | Limited | Limited |
What the extras do
- Glycine is an amino acid with calming effects in the brain, which is why glycinate is linked with sleep. The glycine dose in a magnesium capsule is small.
- Malic acid takes part in the cell's energy cycle, which is why malate is marketed for fatigue. There's no strong evidence that the malic acid in a capsule boosts energy.
How to choose
- If you want magnesium before bed, glycinate is the usual choice.
- If you prefer a daytime supplement, malate is a fine option.
- If cost matters, check the elemental magnesium per capsule: forms differ in how much magnesium they contain.
Dosing
Keep supplemental magnesium at or below 350 mg a day. See how much magnesium per day for your total target, and the best time to take magnesium for timing.
The verdict
You can't go far wrong with either. Choose glycinate for evenings and maximum gut comfort, malate for daytime use. Compare other forms in glycinate vs citrate and glycinate vs oxide.
Frequently asked questions
Is magnesium malate good for fibromyalgia?
Small, older studies of magnesium plus malic acid had mixed results. There isn't strong evidence that it relieves fibromyalgia symptoms.
Can I take glycinate at night and malate in the morning?
Yes, as long as the total supplemental magnesium stays at or below 350 mg a day unless your doctor advises otherwise.
Sources
This page is for education and is not a substitute for advice from your doctor. Read our medical disclaimer.