Lipid metabolism in trained rats: effect of guarana (Paullinia cupana Mart.) supplementation.

Background And Aims: Guarana is widely consumed by athletes, either in supplements or in soft drinks, under the belief that it presents ergogenic and "fat burning" effects. We examined the effect of guarana supplementation (14 days) upon aspects of lipid metabolism in sedentary (C) and trained rats (T).

Methods: To isolate the effect of caffeine from that of other components of guarana, we adopted two different doses of whole extract (G1-0.