Diabetic patients should eat less watermelon. Consuming 1000-2000 grams at once is equivalent to adding 50-100 grams of sugar in a short period. Fruits high in sugar, such as bananas, apples, lychees, pears, longans, and jujubes, should not be consumed casually.
Patients with gastric and duodenal ulcers should not eat bayberries, lemons, etc., if they have excessive stomach acid.
Patients with heart failure should not eat watermelon or coconut water to avoid加重 the burden on the heart.
Patients with allergic constitution are prone to allergic reactions if they eat pineapples, lychees, etc.
Patients with myocardial infarction should not eat fruits such as apples, persimmons, and lotus seeds, as these fruits contain a lot of tannic acid, which will produce a strong astringent effect, worsen constipation, and easily lead to the recurrence of the disease.
Persimmon is a cold-natured food. Patients with qi deficiency, weak constitution and frequent illness, postpartum, or those suffering from external cold and wind should not eat it. Walnut is a warm-natured and moistening food, but people with phlegm-fire and heat accumulation should use it with caution. Longan is sweet and warm in nature. It is not suitable for consumption by those with colds, indigestion, or a thick, greasy tongue coating.