Although garlic is good, not everyone can eat it. The following groups of people are not suitable for eating garlic: 1. Patients with liver disease. Garlic has no effect on the hepatitis virus. Some components of garlic can harm the stomach and intestines. It has a stimulating effect and aggravates many symptoms such as nausea in hepatitis patients. In addition, the volatile components of garlic can reduce red blood cells and hemoglobin in the blood, and may cause anemia, which is not conducive to the treatment of hepatitis. 2. For patients with non-bacterial diarrhea, spicy allicin will irritate the intestines, increase congestion and edema of the intestinal mucosa, promote exudation, and worsen the condition. 3. For patients with eye diseases, long-term consumption of large amounts of garlic will "injure the liver and damage the eyes." Patients with eye diseases such as glaucoma, cataracts, conjunctivitis, stye, and dry eye should try not to eat garlic.