Rice is Japan's staple food. Although high in sugar, rice promotes health. Men in Niigata Prefecture, a main producer, boast Japan's lowest BMI, a gauge of obesity. Rice reduces blood cholesterol and kome-koji made from rice rid the body of fat. A hospital uses mirin, rice-based sweetener which curbs after-meal blood sugar rises, for patients with diabetes. We'll also share recipes for easy-to-make, gluten-free dishes using rice flour. The program explores the secret of superfood, rice, in Niigata.