The Best Magnesium Supplement: How to Choose
How to choose a magnesium supplement — form, dose, testing and transparency — and why a multi-form evening complex like Oh!Mg covers what a single form can't.
Reviewed by Dr Elena Seranova
There’s no single “best” magnesium — there’s the best one for your goal. The right form for evening calm isn’t the right form for digestion, and a cheap bottle of magnesium oxide isn’t really comparable to a well-absorbed chelate. The supplements worth buying get three things right: a well-absorbed form, an honest dose, and third-party testing you can verify.
This pillar pulls together how to choose, and why — for winding down at night — a purpose-built complex tends to beat any single salt.
What makes Oh!Mg different
Most magnesium products sell you one form. Oh!Mg is a multi-form evening complex: bisglycinate, lactate and taurate, plus lemon balm, L-theanine, vitamins B6 and B5 and zinc — made in the UK and third-party tested. Different forms suit different pathways, so a blend covers ground a single salt can’t. The spokes below break down the forms, the comparisons, and how to read a label.