Berberine

Berberine is a plant alkaloid extracted from species such as Oregon grape and barberry, and it is taken mainly for glucose-metabolism support in people whose levels are already within the normal range.

The practical difference between them is the form. NOW Berberine HCl 500 mg and Nature's Truth Berberine HCl 500 mg are single-ingredient berberine hydrochloride. NOW Berberine Glucose Support is a combination formula. Codeage Berberine Phytosome+ uses a phytosome preparation, which aims at higher absorption from the same amount rather than at a higher dose.

Berberine is known to interact with a number of medications, and it should not be started alongside prescribed glucose-lowering medicine without medical advice. Related: Blood Sugar Support and Herbs.