Scores updated Oct 15, 202651 products scoredWeights published on every reportUS and UK prices

Topic

Health

Supplements scored on human studies: the dose that was tested, how big the effect was and how easy it is to take.

A woman in her late fifties on her couch in the evening, checking the glucose sensor on the back of her arm with her phone

Health

Best supplements for blood sugar 2026

Highest score
Berberine87

A man in his fifties sitting in his parked car outside a clinic, reading his printed lab results

Health

Berberine benefits: 8 claims scored on human studies

Best-supported claim
Lowers fasting blood sugar and A1c88

A tired woman in her early thirties sitting cross-legged on her unmade bed in the morning, a hot water bottle on her lap, frowning at her phone

Health

Inositol benefits: 8 claims scored on human studies

Best-supported claim
Lowers insulin in insulin resistance78

An older man sitting on the edge of his bed at night with his bare feet in a basin of cool water, head down

Health

Alpha lipoic acid benefits: 8 claims scored

Best-supported claim
Eases burning, tingling and pins and needles in the feet72

A woman about 48 at her office desk mid-afternoon, reaching into a desk drawer of candy, a half-eaten salad pushed aside

Health

Gymnema benefits: 8 claims scored on human studies

Best-supported claim
Makes sweets taste flat and quiets sugar cravings67

A woman of about 62 in a supermarket spice aisle, reading glasses down her nose, squinting at the small print on a spice jar

Health

Ceylon cinnamon benefits: 8 claims scored, plus the coumarin numbers

Best-supported claim
Lowers fasting blood sugar62