2. Low-sugar foods generally refer to foods with low sugar content, which are within the scope permitted by national standards. Skim-free sugar products are not really sugar-free, so everyone should pay special attention when purchasing. Low-sugar foods mainly include brown rice, oats, buckwheat, konjac, milk, soybeans, mung beans, cherries, kiwis, pears, grapefruit, bitter gourd and spinach.