The Effects of Fresh Watermelon Juice Consumption on Satiety, Postprandial Glucose, Insulin Response, and Topical Application on Skin Health in Healthy Adults

OBJECTIVES: Multiple studies have examined the effects of fresh watermelon, watermelon juice, or watermelon powder on satiety and skin health; however, few studies have addressed the effects of blenderized (flesh, rind, and seeds) watermelon juice. The objective of this study was to determine the effects of blenderized watermelon juice consumption on satiety, postprandial glucose, insulin response, and topical application on skin health in healthy adults. METHODS: In a crossover design, subjects (N = 20, 16 females, 4 males, age 22.8 ± 2.5 y, BMI 22.6 ± 2.80 kg/m(2)) consumed 8 fl oz of either blenderized watermelon juice or isocaloric sugar water. After an overnight fast, blood glucose and insulin levels were measured at baseline, and at 30 and 60 minutes after drink consumption. Measurements for satiety using a visual analogue scale and skin health using a moisture content test were conducted at baseline, right after, 15, 30, 45, and 60 minutes after consumption and topical application of the juices. RESULTS: Both blenderized watermelon and sugar water significantly increased satiety (P