In clinical practice, we often encounter patients or their families asking: How to increase nutrition? What can be used to supplement? From what flies in the sky, to what runs on the ground, to what swims in the water, to what can increase nutrition? I often answer: first of all, we should understand what is nutrition? What is the supplement? Nutritional composition is no more than carbohydrates, protein, fat, vitamins and trace elements. The real nutrition is: how to make these ingredients in the body to achieve the best ratio required by the metabolism of the body. This optimal ratio is the ultimate goal of supplementation. I often say: eat mountainous seafood, raw seafood, chicken, duck and fish, etc., not necessarily increase nutrition. Just look at the animal kingdom (in general, including people), there are vegetarians and meat eaters. Vegetarians, who do not eat meat throughout their lives, are not sick from lack of nutrition, but once they are filled with meat, they will be sick; and meat eaters are the opposite. Man is the spirit of all things, living in heaven and earth, is both a meat eater and a vegetarian. Some people are meat-eaters and some are vegetarians. Therefore, each person should take their own dietary characteristics to regulate, not to delude into other things, so as not to hurt the body!