Want to eat purple potatoes to lose weight the most suitable method is to eat as a meal replacement, purple potatoes can lose weight because purple potatoes contain a large amount of crude fiber, crude fiber into the body will expand, so that people produce a sense of satiety. Purple potatoes as a meal replacement can effectively suppress appetite, reduce the intake of other calorie food caused by fattening phenomenon. Purple potato also contains a lot of fiber, can promote human intestinal peristalsis, conducive to human detoxification and laxative, as a meal replacement can effectively reduce the accumulation of waste caused by bloated obesity. Purple potatoes also contain trace elements and organic acids that are conducive to the promotion of human metabolic rate, can effectively help the body to eliminate excess calories and excess toxins, the purple potatoes as a meal replacement for human weight loss has a positive effect.