Desirable food: coarse grains such as buckwheat, oatmeal, cornmeal, soybeans and soy products, vegetables. Avoid: white sugar, red pond, glucose and sugar sweets such as fructose, pastry, jam, honey, preserves, ice cream, etc. Avoid: potatoes, yams, taro, lotus root, onions, carrots, lard, suet, cream, butter, peanuts, walnuts, sunflower seeds, egg yolk, liver and kidneys. Excessive salt has the ability to enhance amylase activity and promote starch digestion, which can cause an increase in blood sugar concentration and aggravate the disease.