Tag

Supplement safety

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A pregnant woman in a coat resting both hands on her bump

Inositol: uses, evidence, dosing and safety

Inositol does two things, and it does them better than most of the supplement aisle: it lowers the risk of gestational diabetes, and it improves hormone markers in polycystic ovary syndrome.

Aug 6, 2026

Cuts of raw red beef on a butcher counter

verdict

Iron supplements: uses, evidence, dosing and safety

Iron is the one supplement where taking it without a blood test is genuinely unwise. It fixes a diagnosed deficiency well, and the same dose in the wrong person accumulates with nowhere to go.

Aug 6, 2026

Almonds and walnut halves scattered across a pale surface

verdict

Magnesium: uses, evidence, dosing and safety

Magnesium is bought mostly for sleep, which is its weakest evidence. Its real results are elsewhere: blood pressure in people who are short of it, migraine frequency, and heart rhythm after surgery.

Aug 6, 2026

A young child asleep under a white duvet with soft toys beside the bed

News

Melatonin use in children tracked with less REM sleep

A JAMA Network Open study matched 342 pairs of children at a sleep clinic. Those prescribed melatonin had a lower share of REM sleep, and no other measure differed.

Aug 6, 2026