On June 16th, SECRET guested on SBS's "One Night of TV Entertainment" and revealed their diet plan. The girl group's 3-part diet method involves a breakfast diet, dancing, and exercise. What especially caught the eyes of viewers was their low-carb and high protein breakfast diet. The meal consisted of sweet potatoes, bananas, tofu, tomatoes, and other healthy foods. Sunhwa stated, "Out of all the diet foods, sweet potatoes taste the best". Hyosung�added, "In order to�rapidly lose weight, I've tried fasting and eating just cereal, but those methods just made my body unhealthy. In order to stay healthy, we made sure to choose an assortment of healthy diet foods". Through this breakfast meal plan, the SECRET members have been successful in losing 3~4 kg (approximately 6 to 8 pounds). However, their breakfast meal consists of only a total of 565 calories, leading some viewers to worry about their health. The SECRET members added that�practicing the�choreography for 'Madonna' allows them to work out their arms and hips as well. In the episode, they also revealed exercise routines they perform everyday. Source + Photo: Newsen via Nate