Magnesium glycinate vs citrate: how to choose
Magnesium glycinate or citrate? Glycinate is the gentle, calming form for sleep and sensitive stomachs. Citrate absorbs well and eases occasional constipation.
The short answer
Both are real magnesium, and both count toward your daily intake. The difference is what the magnesium is bound to, which changes how it feels. Glycinate is the calm, gentle one most people want for sleep and stress. Citrate is the one that also loosens the bowels, which helps if you are constipated and is a drawback if you are not.
Magnesium glycinate, calm and gentle on the stomach
Magnesium glycinate is magnesium bound to glycine, an amino acid with its own calming reputation. It is well absorbed and unlikely to upset your stomach, so it is the usual choice for evening use, sleep support, and anyone with a sensitive gut. If your goal is winding down and staying asleep, this is the form most people reach for.
Magnesium citrate, well absorbed and mildly laxative
Magnesium citrate is magnesium bound to citric acid. It absorbs well and is inexpensive, but it draws water into the bowel, which softens stools. That makes it useful if you deal with occasional constipation, and less pleasant if you do not, since loose stools are the most common complaint.
How much, and when
Most adults see a benefit from roughly 200 to 400 mg of elemental magnesium a day from supplements, on top of food. Evidence suggests the evening suits glycinate well, since it pairs with a wind-down routine. Citrate can be taken earlier in the day if you are using it for regularity. Start low, increase slowly, and pay attention to how your stomach responds.
Fitting magnesium into your stack
Magnesium interacts with a few common supplements. Large doses of calcium and magnesium taken at the same moment compete a little, so spacing them out helps. If you take several supplements, it is worth checking the whole combination rather than guessing. You can paste your current list into the free checker to see what works together and what to separate.
The bottom line
For sleep, stress, and a sensitive stomach, glycinate is the gentler pick. For occasional constipation or a budget choice, citrate makes sense. Neither is a treatment for any medical condition. If you take medication or have kidney problems, talk to your clinician before adding magnesium.
This is education, not medical advice. Supplements are not intended to diagnose, treat, cure, or prevent any disease. Talk to your clinician before changing what you take.