For perimenopause, magnesium glycinate is usually the best choice — it is gentle on the stomach and its calming effect suits the sleep problems this stage brings. Citrate is a good second if you also struggle with constipation. Skip magnesium oxide, which is cheap but poorly absorbed.
Magnesium glycinate: the perimenopause pick
Glycinate is magnesium bound to the amino acid glycine, which is itself calming. It absorbs well, rarely upsets the stomach, and is the form most often recommended for sleep and anxiety — exactly the perimenopause pain points.
The other forms, briefly
- Citrate — well absorbed, mildly laxative; good if constipation is also an issue.
- Oxide — poorly absorbed; mostly used as a cheap laxative, not a great supplement.
- L-threonate — marketed for the brain; more expensive, evidence still emerging.
What to look for on the label
Check the elemental magnesium amount (the actual magnesium, not the total compound weight), look for third-party testing, and start with a modest dose in the evening. Why the form and dose on a label matter so much is exactly what we cover in how we review.
Not medical advice. If you have kidney disease or take medication, ask your clinician before starting magnesium.
The bottom line
Glycinate for most women in perimenopause; citrate if constipation is also a problem. For where magnesium fits among everything else, see the supplements guide.
References
- Abbasi B, et al. Magnesium supplementation and insomnia. J Res Med Sci. 2012. PMC3703169