Sweet potatoes should be eaten at lunch time. After eating sweet potatoes, the calcium contained in them can be completely absorbed by the human body after four to five hours. Eating sweet potatoes at lunch time can completely absorb calcium before dinner, and it will not affect the absorption of calcium in other foods at dinner.

2, to lose weight and lose weight, you should choose breakfast.

Morning is an important time for the body to detoxify, especially after a night's rest, and the stomach is in urgent need of discharging garbage. At this time, eating sweet potatoes, in which dietary fiber can accelerate intestinal peristalsis, easily defecate, make the intestines unobstructed, and play the role of detoxification and weight loss.