Because sweet potato is a coarse grain, rich in crude fiber and vitamins, it can increase satiety, delay the rise of blood sugar, increase intestinal peristalsis and promote defecation. It is one of the good coarse grains to replace some staple foods during weight loss.

In fact, sweet potato is not sweet, but it contains starch, which is not sweet, but sweet potato mainly contains amylase. Starch generates disaccharide or monosaccharide under the action of amylase, so disaccharide and monosaccharide are sweet, so sweet potato is decomposed by salivary amylase after entering our mouth, and the sweetness is stronger.

So we always feel sweet when we eat sweet potatoes, which is actually related to these two reasons.

1, people with stomach problems should not eat it.

Because sweet potato contains a substance called "gasification enzyme", it produces a lot of gastric acid in the stomach after eating, and people with stomach problems will have symptoms such as acid reflux, nausea and vomiting after eating it.

2, diabetic people should not eat.

Sweet potato has a high sugar content and is not recommended for diabetics.

Sweet potato is rich in calcium, potassium and magnesium. Adequate calcium can inhibit the combination of fatty acids and cholesterol in the intestine and prevent the absorption of fat in the intestine. In addition, sweet potato is rich in dietary fiber and B vitamins, which can increase satiety, promote excretion and prevent constipation. Therefore, eating sweet potatoes during weight loss can play a role in weight loss.