Sweet potato family has been loved by people, especially in the winter, inviting aroma of baked sweet potato is to let a person salivate, but, the sweet potato in the family and purple potato has been compared by people, such as who is more nutritious? Who suits to reduce weight more period edible? In order to help you better understand the "potato" nature of each, next, we will introduce to you one by one.

   The color of sweet potatoes is associated with high levels of carotene, and the amount of vitamin C found in them is 26 milligrams per 100 grams, higher than most root, fresh beans and fruit vegetables. Secondly, the dietary fiber is also easy to be digested and absorbed by the human body. In particular, sweet potato after cooking, part of the starch changes, will increase about 40% of the dietary fiber, can effectively stimulate the peristalsis of the intestinal tract, promote defecation. In addition, fat content is less than 1%, total calories are also very low.

   Purple potato is characterized by more anthocyanins than other family members, but in other aspects, such as dietary fiber, fat content and so on and sweet potato is not much different. Purple potatoes are rich in dietary fiber, starch, vitamins, trace elements, selenium, iron, calcium, potassium, etc.) and cyanine glycosides, glycoprotein, carotene, hydrogen to table the male (steroid) ketone and so on the many kinds of functional factors, antioxidant, anti swelling tumour, enhance memory, can prevent hypertension, myocardial, reducing liver machine repair barriers, enhance immunity, etc.

   The biggest characteristic of sweet potato is starch content on the high side, sugar is little, so edible rise taste can drier.

   Overall, different colors of sweet potato in addition to the nutritional value of a little deviation, its sweet potato and purple potato starch content, brought satiety and other aspects are actually not very different. So, henceforth want to buy according to individual preference only. Finally, I would like to remind you that although sweet potato is very good, don't forget these three aspects when eating. The dietary guidelines for Chinese residents recommends eating 50 to 100 grams of potato every day. Because compared with wheat and rice, the protein content of sweet potato is lower, it is better to partially replace rice, pasta and other cereals on weekdays, try not to eat only sweet potato as the staple food.

   The person with weaker function of intestines and stomach, eat sweet potato less, eat more can stimulate gastric acid to secrete in great quantities, cause abdominal discomfort. To gastric ulcer, gastric acid is overmuch crowd remembers not to eat sweet potato on an empty stomach, lest aggravate an illness.

   Had better not eat skin, because sweet potato skin contains more alkaloid, edible overmuch can bring about gastric bowel discomfort. Especially the sweet potato skin that has black spot cannot edible more, serious person can cause toxic even.