You can eat purple potatoes in moderation for weight loss, but you can’t eat purple potatoes in excess. Every 100 grams of purple potatoes contain 74 calories, of which 17.3 grams of carbohydrates, 1.14 grams of fiber, 2.34 grams of protein. Can provide the body with carbohydrates and a moderate amount of fiber, eating in moderation can provide the body with some energy, replenishment of some of the nutrients needed, to a certain extent, to maintain the normal activities of life. But it does not mean that weight loss can eat unlimited amounts of purple potatoes, excessive intake of purple potatoes, may lead to the accumulation of body heat, which in turn leads to an increase in the probability of obesity. So during the weight loss period, pay attention to control the total calorie intake, balanced diet, while moderate exercise.