What is BHB?

Beta-hydroxybutyrate (BHB) is a ketone body that can be produced by the body and can also be consumed in exogenous ketone products.

Endogenous vs exogenous BHB

Endogenous ketones are produced internally, including during periods of low carbohydrate availability. Exogenous ketones come from outside the body through supplements.

What supplements can do

Controlled studies summarized in a 2023 meta-analysis show that exogenous ketones can acutely raise blood BHB. That measurable effect should not be conflated with proof that a supplement independently causes sustained weight loss.

BHB supplements → · BHB salts →