The calorie of purple potato is relatively low, about 70 calories per100g. Purple sweet potato is rich in cellulose, which can promote intestinal peristalsis, increase excretion and prevent constipation.

2. Purple sweet potato is rich in protein and high in moisture.

Protein plays a role in supplementing nutrition for human productivity in the process of losing weight. In addition, protein can increase muscle and burn fat, and at the same time make you feel full. And drinking more water can increase the amount of water, because water participates in the burning and metabolism of fat.

3. Purple potato is rich in calcium.

Eat more foods rich in calcium during weight loss, because rich calcium combines with fatty acids and cholesterol in food in human intestine, preventing intestinal absorption of fat, so it has the effect of inhibiting fat formation.