Don't worry too much just because you are a diabetic. In fact, many coarse grains and edible materials can be safely eaten: oats, buckwheat, laver, kelp, black rice, (note: rice is not recommended, which is the least cultivated among grains), figs, mangosteen, cashew nuts, olives, pomegranates (recommended, but carefully considered) and garlic (do not use onions in the future, try to use garlic and garlic).