红薯,在世界上不少国家称它为“长寿食品”。 据日本研究发现,红薯中除了含有糖、蛋白、脂肪、维生素等多种人体必需的营养物质外,还含有糖蛋白的混合物,属于胶原和粘液多糖类物质。这种物质能增进健康、防止疲 Sweet potatoes, many countries in the world call it “longevity food.” According to Japanese studies found that, in addition to sweet potato contains sugar, protein, fat, vitamins and other nutrients necessary for the human body, but also contains a mixture of glycoproteins, belonging to collagen and mucopolysaccharides. This substance can improve health and prevent fatigue