4.2. Intervention and Control Powders
The compositions of the control and freeze-dried strawberry powders, provided by the California Strawberry Commission (Watsonville, CA, USA), were as follows: the low-dose strawberry group (one serving/day) received approximately 123 kcal, 28 g carbohydrates, 2 g dietary fiber, 26 mg vitamin C, 400 mg total polyphenols, and 38 mg total anthocyanins per day for four weeks, and the high-dose strawberry group (two-and-half servings/day) received approximately 124 kcal, 27 g carbohydrates, 5 g dietary fiber, 65 mg vitamin C, 960 mg total polyphenols, and 92 mg total anthocyanins per day for four weeks. The control powder was formulated to match the sensory and caloric properties of the strawberry powder, but had no polyphenol content [