The claimEvidence B · meta-analysis
Berberine = Nature's Ozempic
The evidence
HbA1c drop is metformin-tier (~0.7-1%) — nowhere near GLP-1 RA pharmacology.
Why the claim spreads
'Nature's version of the expensive famous drug' is an irresistible hook — the nickname caught fire on TikTok by riding Ozempic's fame.