2. Materials and methods
2.1. Diets and chemicals
The composition of the low-fat (LF, 10% kcal from fat), high-fat (HF, 60% kcal from
fat) and HF diet supplemented with 80 mg/g unsweetened cocoa powder (HFC) diet
was described previously [26]. The unsweetened cocoa powder used in this study was
provided by Blommer Chocolate (Chicago, IL, USA). The composition of the cocoa
powder was previously reported [26]. All other chemicals were of the highest grade
commercially-available.