Chromium GTF (brewer's yeast form)

Tier 2 — promising · Insulin sensitivity · Glucose · Metabolic

A biologically active form of chromium complexed with niacin and amino acids from brewer's yeast. A 2024 review found GTF chromium modestly reduces fasting blood sugar and improves insulin sensitivity in people with impaired glucose tolerance. Potentially more bioavailable than inorganic chromium picolinate.

Dose: 200–400 mcg/day chromium GTF; may be more bioavailable than chromium picolinate in some studies