1. Selection of staple foods and beans: japonica rice, millet, sorghum, cornmeal, black beans, gorgon seeds, barley, etc.

2. Choice of meat, eggs, and milk: mutton, dog meat, animal kidneys, caviar, oysters, soft-shell turtles, clams, pigeon eggs, pork kidneys, etc.

3. Selection of vegetables: white lentils, yams, leeks, onions, celery, lettuce, green onions, mushrooms, etc.

4. Fruit selection: mulberries, strawberries, jujubes, black dates, etc.

5. Others: walnut kernels, pine nuts, chestnuts, sesame seeds, hazelnuts, etc.