1, not suitable for eating with cucumbers. Cucumber contains a vitamin C decomposing enzyme, which will destroy vitamin C in other vegetables. Tomatoes are rich in vitamin C. When they are eaten together, they can't achieve the effect of supplementing nutrition.

2, taking heparin, dicoumarin and other anticoagulant drugs should not be eaten. Tomato contains more vitamin K, which mainly catalyzes the synthesis of prothrombin and thromboplastin in the liver. When vitamin K is insufficient, it will prolong the clotting time and cause subcutaneous and muscle bleeding.

3, should not be eaten on an empty stomach. Tomatoes contain a large number of soluble astringents and other ingredients, which react with gastric acid and condense into insoluble blocks, easily causing discomfort such as flatulence and pain.

4. It is not advisable to eat immature tomatoes. Green tomato contains alkaloid glycoside (solanine), which will make the mouth bitter when eaten lightly, and even toxic when eaten severely.

5. It is not suitable for eating after cooking for a long time. After a long period of heating and cooking, it will lose its original nutrition and taste.

6. Contraindications when taking neostigmine or galanthamine.