In fact, long-term vegetarianism is mainly due to iron deficiency and vitamin B 12 deficiency. It is best to cooperate with the corresponding nutritional drugs, or drink milk if milk is allowed. Vegetarian diet should include soybeans, peppers, broccoli, spinach, edible fungi and so on. And often eat oranges, melon seeds, raisins and so on.

In fact, there is no need to deliberately supplement it in the short term, but we must pay attention to prevent too abrupt vegetarianism. We shouldn't fast for a week immediately after eating big fish and meat, and then overeat big fish and meat immediately. In fact, a reasonable and healthy vegetarian diet should be gradual. But what you mean seems to be the sudden demand for vegetarian food due to drug taboos, religion, funerals or local culture, so you'd better prepare some chocolate wafer cookies and so on to replenish energy at non-eating points. )

As for what vegetarian food to eat and how to do it, there are actually many. I suggest you search for the word "vegetarian" in Baidu, and you will find many vegetarian recipes, which are delicious, nutritious and can fill your stomach. Of course, please pay attention to some key foods that I mentioned above to supplement vitamin B 12 and iron. In addition, avoid strenuous exercise and prepare snacks such as chocolate wafer as a buffer energy source for sudden changes in diet.