Magnesium and the supplement aisle
EFSA's adequate intake is 350 mg a day for men and 300 for women. The gap between that and what the pill bottles promise is where most of the confusion lives.
Friday, 18 September 2026Nutrition, with receipts
Plate & ProofSection
Vitamins and minerals: who actually runs short, and what the reference values are for.
6 articles
EFSA's adequate intake is 350 mg a day for men and 300 for women. The gap between that and what the pill bottles promise is where most of the confusion lives.
EFSA sets an adequate intake of 3,500 mg a day. Most sodium advice quietly assumes you are also hitting it, and most Europeans are not.
EFSA's adequate intake for adults is 250 mg of EPA plus DHA a day. That is two portions of oily fish a week, and almost nothing else on the shelf.
EFSA's reference intake is 950 mg a day for adults over 25. Dairy is the easy route there, and it is not the only one.
EFSA sets 11 mg a day for men and 16 mg for premenopausal women. The gap between those two numbers explains almost everything about iron deficiency.
EFSA's adequate intake is 15 micrograms a day for adults — a figure set for the case where your skin is making none of it. Between October and March in northern Europe, that is the case.