1, pay attention to diet and nutrition. You can often eat beautyberry rice, black beans, red beans, mung beans, Hong Ling, black sesame seeds, walnuts, etc.

2, vegetables often eat carrots, spinach, purple radish head, purple cabbage, mushrooms, black fungus and so on.

3. Animals often eat black-bone chicken, beef, sheep, pig liver, soft-shelled turtle, dark fleshy fish, sea cucumber and so on.

4, fruits often eat jujube, black dates, persimmons, mulberries, purple grapes and so on.