Tag

Selenium

Mixed nuts including brazil nuts scattered on dark wood

A selenium supplement lowered long-term blood sugar by 1.2 points in eight weeks

That is a drug-sized change from a mineral sold in pharmacies. It came from one small trial in patients with diabetic nerve damage, and the size of the effect is the reason to be careful rather than excited.

Sep 6, 2026

Two cupped hands holding dark soil above a field

verdict

Selenium: uses, evidence, dosing and safety

Selenium is essential, and supplementing it when you are not short of it is the clearest honest-no in the supplement aisle. Cochrane found no cancer benefit at high certainty, plus signals of harm.

Aug 5, 2026