The 3 Best Magnesium Supplements of 2026
Glycinate, citrate or threonate? We ranked the magnesium supplements worth your money by form, dose and absorption.
We prioritised well-absorbed forms, transparent dosing and third-party testing over flashy marketing.
Magnesium is one of the most useful — and most over-marketed — supplements. The form matters more than the brand. Here’s how our top three compare.
#1 Glycinate Pick
Best for sleepGentle on the stomach and well-absorbed — our default recommendation.
- Pros
-
- + Easy on digestion
- + Clear dosing
- Cons
-
- – Larger capsules
#2 Citrate Pick
Best valueAffordable and effective, though more likely to have a laxative effect at higher doses.
- Pros
-
- + Inexpensive
- + Widely available
- Cons
-
- – Can loosen stools
#3 Threonate Pick
PremiumMarketed for cognitive support; pricier, with a smaller evidence base.
- Pros
-
- + Crosses into the brain in studies
- Cons
-
- – Expensive
- – More research needed
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