Factors affecting the digestion of food proteins mainly include the nature of proteins, the degree of gastric acid secretion, gastrointestinal function, liver function, and so on. 1. The nature of protein: Generally speaking, plant proteins such as soybeans and soy products are better digested than animal proteins such as meat. 2. Degree of gastric acid secretion: When gastric acid secretion is excessive, food protein is digested better. If the patient has serious gastritis, gastric ulcer and other diseases, gastric acid secretion is insufficient, which will also affect the digestion speed of food protein. 3. Gastrointestinal function: when the gastrointestinal peristalsis is too slow and the gastrointestinal function is insufficient, it will also affect the digestion speed of food protein. 4. Liver function: The liver promotes the digestion of protein in food by synthesizing and secreting enzymes. Inadequate liver function can also lead to poor and slow digestion of food protein. In addition, there may be other factors affecting the digestion of food protein, such as the speed of eating and the size of the food, which need to be identified.