Patients with hypertension should not eat grapefruit, especially grapefruit. Because it can interact with the drugs taken by patients with hypertension, the blood concentration of the drugs increases, and the blood pressure drops obviously, which poses a threat to health.

Grapefruit is cold, and people who are weak should not eat more. Patients taking medicine, especially the elderly, had better not eat grapefruit or drink grapefruit juice.

2. Taboos for eating grapefruit

1) Avoid eating grapefruit before taking the medicine.

Because grapefruit itself contains an active substance, it will inhibit an enzyme in the human intestine. If you eat grapefruit during taking medicine, it will not only affect the normal metabolism of drugs and lead to drug failure, but also increase the blood concentration, thus affecting the detoxification function of the liver and damaging the liver function. At the same time, it may also cause other adverse reactions and even lead to poisoning. For example, if you eat grapefruit while taking antiallergic drugs, the patient will feel dizzy, palpitation, arrhythmia and even sudden death.

2) Women who take birth control pills should not eat them.

A study in the United States shows that grapefruit has the most prominent influence on contraceptives. Experts say, "If a woman who takes birth control pills eats 2-3 grapefruit after sex, or directly takes birth control pills with a large glass of grapefruit juice, then she may become a mother after a wonderful moment, because grapefruit hinders women's absorption of birth control pills."