Sweet potato, also known as sweet potato, sweet potato, sweet potato, etc., is a relatively common vegetable, because the leaves, fruits are edible, and has to protect the heart, weight loss, anti-cancer and other effects and loved by the people, what are the benefits of eating sweet potato? And purple potatoes which is good? See what the nutritionist said!

One, what are the benefits of eating purple potatoes?

1, delayed aging: purple potatoes have antioxidant effect, and the effect is good, often eat purple potatoes can help improve the skin, regulate the endocrine, but also delay aging.

2, promote digestion: purple potatoes contain a lot of fiber content, to help clean up the intestinal waste, promote gastrointestinal peristalsis, help defecation. Constipated people can eat a little purple potatoes, can make the stool more fluent, but also can prevent some digestive diseases.

3, anti-cancer blood: purple potatoes are rich in iron and selenium, iron to help the body to replenish blood, while selenium has a certain anti-fatigue, anti-cancer effect. Selenium can help remove free radicals in the body, but also can inhibit the generation, division and growth of cancer cells, for anti-cancer have a certain effect.

4, protect the liver and reduce fire: purple potatoes are also good for the liver, with the role of lowering liver fire, if you usually prefer to smoke and alcohol and the personality of the impatient men, you can eat some purple potatoes, good health.

Two, what are the benefits of eating sweet potatoes?

1, weight loss: sweet potatoes in the fat content is very low, and eat will increase the sense of satiety, with sweet potatoes as a staple food can help reduce the intake of other foods. And sweet potatoes will also increase defecation, help to lose weight.

2, smooth blood pressure: sweet potatoes are rich in potassium, can help reduce the risk of stroke, high blood pressure, high blood pressure people can eat a little sweet potatoes, for smooth blood pressure is helpful.

3, good for the heart: sweet potatoes contain a variety of ingredients, can help prevent cardiovascular disease, such as carotene, folic acid, vitamin B6 and vitamin C, etc., for maintaining heart function, preventing atherosclerosis is very good.

4, control blood sugar: sweet potatoes in the sugar is low, especially white sweet potatoes have a certain anti-diabetic effect. One study showed that patients with type 2 diabetes took extracts of white-skinned sweet potatoes, insulin sensitivity improved, helping to control blood sugar.

Three, sweet potatoes and purple potatoes which is better?

For the nutritional value, it should be purple potatoes slightly better, because purple potatoes contain sweet potatoes do not contain "anthocyanins", this anthocyanin component has an anti-aging effect, can fight free radicals. Free radicals are one of the culprits of oxidative damage to human cells. In addition, selenium in sweet potatoes is not as much as purple potatoes, purple potatoes can help the human body to enhance immunity than sweet potatoes, so purple potatoes may also be better anti-cancer effect.

In addition, most of the nutrients contained in sweet potatoes can also be found in purple potatoes, so the various effects of sweet potatoes are actually purple potatoes. But we still need to pay attention to, whether it is purple potatoes or sweet potatoes, need to pay attention to the consumption method. For example, it is best not to eat more and eat raw, easy to not digest or produce bloating and nausea. In addition, purple potatoes may contain some allergenic ingredients, easy to allergic people should be vigilant.

Four, what is the difference between purple potatoes and sweet potatoes?

1, taste

Sweet potato: sweet potato compared to purple potatoes lighter sweet potato, sweet potato steamed water content is higher, the taste is thinner.

Purple potatoes: purple potatoes have a sweeter flavor and a more faceted texture than sweet potatoes, which makes them more palatable to eat.

2, nutrition

Sweet potato: sweet potato starch content is higher, and vitamin A and carotene content is higher, fiber content and purple potato is similar, only 0.1% lower.

Purple potatoes: purple potatoes have a higher content of trace elements selenium, zinc, potassium, iron, but also contains anthocyanins that do not exist in sweet potatoes, starch is lower than sweet potatoes.

3, efficacy

Sweet potatoes: sweet potatoes are more inclined to laxative laxative and eye protection effects.

Purple potatoes: purple potatoes are more in favor of supplemental trace elements, selenium and other aspects, and there are anthocyanins antioxidant effect.

4, growth

Sweet potatoes: sweet potatoes are more resistant, so planting is less difficult, easier to grow.

Purple potatoes: purple potatoes have certain requirements for the soil, the soil needs a certain amount of selenium content, and more difficult to grow.

5, price

Sweet potato: sweet potato yield is high, planting difficulty is low, so the price is cheaper.

Purple potatoes: purple potatoes are in demand for production conditions, and the yield is relatively low, so the price of purple potatoes is higher.