Every100g of fresh sweet potato contains only 0.2g of fat, which can generate 99 kilocalories of heat energy, which is about 1/3 of that of rice. Therefore, it is a good low-fat and low-calorie food, which can effectively prevent sugar from transforming into fat, thus contributing to weight loss and bodybuilding.
In addition, because sweet potato contains a lot of dietary fiber, it can't be digested and absorbed in the intestine. Therefore, it can stimulate the intestine, enhance peristalsis, and improve constipation for the elderly.
Extended data
Other influences
1, sweet potato is good for the heart.
Sweet potato is rich in potassium, beta-carotene, folic acid, vitamin C and vitamin B6, all of which help to prevent cardiovascular diseases. Potassium contributes to the balance of liquid and electrolyte in human cells and maintains normal blood pressure and heart function.
β -carotene and vitamin C have the effects of anti-lipid oxidation and prevention of atherosclerosis. Supplementation of folic acid and vitamin B6 is helpful to reduce the level of homocysteine in blood, which can damage arterial blood vessels and is an independent risk factor for cardiovascular disease.
2. Sweet potato has antidiabetic effect.
Japanese researchers found that the blood insulin level of diabetic obese rats decreased by 26% and 60% respectively after eating white sweet potato for 4 weeks and 6 weeks.
It is found that sweet potato can effectively inhibit the increase of blood sugar level in diabetic obese rats after oral glucose. Eating sweet potato can also reduce the levels of triglycerides and free fatty acids in diabetic rats; It is suggested that sweet potato with white skin has certain anti-diabetic effect. A clinical study at the University of Vienna in Austria found that insulin sensitivity of patients with type 2 diabetes mellitus was improved after taking sweet potato extract, which helps to control blood sugar.
Sweet potato has always been regarded by nutritionists as a balanced food with the same origin of medicine and food. Its calories are only one-third of that produced by the same weight of rice, and it contains almost no fat and cholesterol. Eating sweet potatoes regularly is beneficial to human health and has a certain weight loss effect. But don't eat too many sweet potatoes at a time to avoid abdominal discomfort such as heartburn, acid reflux or bloating.
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