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3Medicinal

Berberine

Also sold as Berberine HCl

Potent glucose-lowering action. Genuinely drug-like, with real interactions.

TrustedSupp Tier System™ · Tier 3Take as a defined course
Check before you startThis one has documented interactions with medication classes where the consequences are serious. If you take any prescription medicine, run it past a pharmacist before starting.

Evidence strength

72/100Strong
WEAKLIMITEDMODERATESTRONGVERY STRONG

What the evidence supports: lowering blood glucose and HbA1c.

This scores how well-supported the claim above is — not how much benefit you personally would get. A high score on a narrow claim does not extend to everything the product is marketed for.

How long to take it

Course-based, eight to twelve weeks with reassessment. Not a permanent fixture.

Who it's actually for

People managing insulin resistance or PCOS, under medical guidance.

Safe upper limit

Unverified
No formal limit; 500 mg two to three times daily in trials
Strongly inhibits liver enzymes that clear many medications, raising their blood levels. Not for pregnancy or infants.
No source or citation attached yet.

Interactions to know about

Other supplements:

Run your full list through the interaction check.

Practical notes

  • Treat this like a medication, because functionally it is one.
  • Combined with diabetes drugs it can drop blood sugar too far.
  • Never in pregnancy or while breastfeeding.