1. Many people say that there are not enough kinds of essential amino acids in tofu, and that this is an incomplete protein, which is a misunderstanding. In fact, there are few truly incomplete protein. Even cucumber and Chinese cabbage basically contain eight essential amino acids. At present, the word "incomplete protein" is basically disliked in the field of nutrition. Strictly speaking, it belongs to pseudoscience vocabulary.
Eight essential amino acids, Bright, Bright, Lai, Egg, Styrene, Su, Color, Pick and Tofu.
Protein is nothing more than protein, but it doesn't really lack one or more essential amino acids. What is really lacking, really incomplete protein, is animal, such as collagen.
2. The problem of soybean isoflavone. As long as you don't eat too much soy products, you don't have to worry about eating too much. This thing is not estrogen, but belongs to "estrogen-like substance", which can combine with estrogen receptor, but the hormone effect is very weak.
3. The absorption rate of plant protein is indeed lower than that of animal protein, but the overall absorption rate is not low, with a difference of more than 80% and more than 90%.
Tofu is not a fitness food, but the main reason is definitely not nutrition. Don't overestimate the nutritional specialty of fitness meals. Many people think that fitness meals must be very nutritious and reasonable. Who said that? Fitness meal is just a commodity, or a profit-oriented culture. It is not medicine, so it is not necessarily reasonable.