Berberine HCl is extracted from several plants and is one of the more widely studied natural compounds for metabolic and glucose health.

Clinical research on berberine often uses considerably higher doses, taken multiple times daily, than a single ingredient sharing space in an eight-ingredient capsule is likely to contain.

Because MetaboSwitch doesn't publish the individual dose, there's no way to know how this specific formula compares to the amounts used in that research.

Where it sits in the formula: one of eight ingredients named in MetaboSwitch's marketing graphics, alongside White Kidney Bean Extract, Green Tea Extract, Garcinia Cambogia, Chromium Picolinate.