Children's vegetables, oily vegetables, Artemisia selengensis, Pleurotus ostreatus and crab meat cannot be cooked together. Children's vegetables, oily vegetables, Artemisia selengensis, Pleurotus ostreatus and crab meat cannot be cooked together. Crab meat is rich in protein, while persimmon contains a lot of tannic acid. These two substances will react with each other to form protein, which will solidify into a ball and be difficult for the stomach to digest.