1. It is not advisable to eat a lot of tomatoes on an empty stomach, and gastric acid secretion on an empty stomach increases, causing stomach discomfort and flatulence. 2. If the lower part of the tomato is not round, but sharp, it is generally caused by excessive use of hormones, so don't buy it. In hot summer, tomato is a better sunscreen tool than sunscreen. Because tomatoes are rich in antioxidant lycopene, daily intake of 15 mg of lycopene can reduce the risk of sunburn by 40%. Fresh fruits and vegetables are more nutritious when eaten raw than when cooked. Many people may think so. However, the latest research results of a group led by Liu Jiaoshou, an American scholar on China issues, have challenged this view. They found that at least for tomatoes, the overall nutritional value of cooked food is higher than that of raw food. 1. Suitable for people with fever, thirst, loss of appetite, habitual gingival bleeding, anemia, dizziness, palpitation, hypertension, acute and chronic hepatitis, acute and chronic nephritis, night blindness and myopia. 2. Patients with acute enteritis, bacillary dysentery and active ulcer should not eat.