High blood sugar

Too much glucose in the blood, which studies measure as fasting glucose, HbA1c and insulin resistance (HOMA-IR).

Strongest evidence: Fiber, Inositol and Magnesium.

Supplements for high blood sugar

Each supplement gets the grade of its strongest high blood sugar benefit. Open one to see each benefit.

StrongModerateWeakNo trials

Filter supplements

SupplementMain effects in studiesEvidenceBenefits studied

FiberHbA1c ↓, 0.5%, Postmeal glucose ↓Strong1 of 1

Inositol↓ HOMA-IR, glucose, ↓ HbA1c, FPGStrong1 of 1

MagnesiumLower glucose, better sensitivity, Higher glucose, worse sensitivityStrong1 of 1

ChromiumBlood sugar ↓, Insulin sensitivity ↑Strong1 of 1

PotassiumK↓, glucose↓, insulin sensitivity↑, glucose↓Strong1 of 1

AlanineAlanine↓ glucose↓, Alanine↑ glucose↑Strong1 of 1

BerberineLower glucose/HbA1c, Lower insulin resistanceStrong1 of 1

InulinLower glucose/HbA1c, Better insulin resistanceStrong1 of 1

White MulberryPost-meal glucose ↓, FPG/HbA1c ↓Strong1 of 1

ButyrateButyrate↑ glucose↓, AUC−36 mg/dLStrong1 of 1

Showing 10 of 75 supplements.

What high blood sugar covers

One benefit that studies measure, and the supplements with the strongest evidence for each.

Blood sugar

How much glucose is in the blood and how well the body clears it. The usual measures are fasting glucose, HbA1c for the last two to three months, and insulin resistance calculated as HOMA-IR.

75 supplements, 13 strong

FiberStrong, 203
InositolStrong, 42
MagnesiumStrong, 38
ChromiumStrong, 35
PotassiumStrong, 34

Protocols for high blood sugar

What studies used, for this goal or for a group of people. Not advice: talk to a doctor first.

One supplementMagnesium for blood sugarWhat trials of magnesium used in people with diabetes or at high risk of it, and how blood sugar changed.