Gutta Mundi (natural grain food advocate) Answer:
The purple color of purple potatoes is due to the fact that purple potatoes are rich in anthocyanins, which are not comparable to ordinary sweet potatoes. Anthocyanin is also a powerful antioxidant, and its ability to scavenge free radicals is stronger than that of vitamin C and vitamin E. Not only can it scavenge excessive free radicals through the indirect effect of increasing the activity of animal antioxidant enzymes, but its phenolic hydrocarbon group can also release electrons to replenish free radicals through redox, thus scavenging free radicals directly.
The benefits of anthocyanins go beyond that, as more and more studies have shown that anthocyanins in purple potatoes can help constrain the development of certain cancers and serious vascular diseases and reduce their incidence. In addition, anthocyanins have the ability to enhance memory, prevent aging, prevent diabetes and obesity, and improve the optic nerve. Another thing that makes purple potatoes particularly superior to regular sweet potatoes is that they are rich in selenium. Selenium is a component of glutathione peroxidase, which has a special contribution to scavenging free radicals in the body; selenium is also an important contributor to the prevention of and fight against cancer.
From the nutritional composition, purple potatoes are indeed richer than ordinary sweet potatoes, but compared to the market price is much higher than ordinary sweet potatoes, its cost-effective is still debatable, after all, our body needs nutrients is not just eat a certain kind of food to supplement. And purple potatoes and ordinary sweet potatoes, containing oxidative enzymes easily in the human gastrointestinal tract to produce a large amount of carbon dioxide gas, so that people bloating, uh, gas, once a large number of food will also stimulate a large amount of secretion of gastric acid and thus produce a "heartburn" feeling. Therefore, even if the purple potatoes are nutritious, you can not eat too much!
The above content is answered by natural cereals - Grain Field Dream, I hope to help you.