Moldy amaranth stems are harmful to humans.

1. Affects appetite: Moldy amaranth stems usually have deteriorated, and their taste will change. The original refreshing taste may taste bitter, spicy, or even rancid. Eat it in small amounts. Appetite may be affected later.

2. Induce infection: moldy amaranth stems are not easily digested by the body, and because the mold produces a large amount of toxins, if eaten, it may cause gastrointestinal infection, causing nausea, vomiting, abdominal pain, diarrhea and other symptoms.

3. Increase the risk of cancer: A large amount of mold is attached to amaranth stems after they become moldy, among which Aspergillus flavus has certain carcinogenicity. If moldy amaranth stems are eaten frequently and in large amounts, a large amount of Aspergillus aflatoxin may enter the body, which may increase the risk of cancer.

Therefore, it is not recommended to eat moldy amaranth stems. If symptoms of discomfort occur, you should go to a regular hospital for treatment in time.