Botanicals

Berberine — timing, dose & interactions

Plant alkaloid (goldenseal, barberry) that lowers blood sugar and cholesterol in trials. Inhibits several drug-metabolizing enzymes and must be avoided in pregnancy and infancy.

Timing

When to take it

With meals, usually split into 2–3 doses to reduce stomach upset.

Interactions

Berberine with other supplements

Safety

Medications & health conditions

CautionBlood thinners

Berberine can change drug levels. Berberine inhibits several drug-metabolizing enzymes (CYP2D6, CYP3A4, CYP2C9). Ask your pharmacist.

Mechanism-based
CautionDiabetes medication

Berberine lowers blood sugar. Its effect in trials was comparable to some diabetes drugs. Combined, hypoglycemia is possible — monitor closely.

Strong evidence
CriticalPregnant or breastfeeding

Berberine can harm newborns. Berberine can worsen jaundice in newborns. Do not use during pregnancy or breastfeeding.

Human data

Buying guide

What to look for on the label

  • Berberine

    • Berberine HCl, split doses with meals

FAQ

Common questions

When is the best time to take Berberine?

Breakfast or Lunch or Dinner. With meals, usually split into 2–3 doses to reduce stomach upset.

Should Berberine be taken with food?

Yes. Taking it with a meal reduces stomach upset.

Can you take Berberine with Chromium?

Usually fine, but the glucose-lowering effects can add up. If you take diabetes medication, monitor your blood sugar when adding either.

Sources

References

  1. 01Lan J et al. Meta-analysis of the effect and safety of berberine in the treatment of type 2 diabetes mellitus, hyperlipemia and hypertension. J Ethnopharmacol 2015.
  2. 02NIH NCCIH — Goldenseal (berberine safety in pregnancy and newborns)