1, grapefruit is a cool fruit, which has the effects of relieving cough and resolving phlegm, moistening lung and clearing intestine. It is a good fruit for tonifying lung and relieving cough after a cold in winter. Because of its cold nature, those who are weak due to qi deficiency should not eat more, and those who have diarrhea due to spleen deficiency will have diarrhea after eating grapefruit, so those who are weak and afraid of cold should not eat more.

2, cool fruit refers to cold fruit, which has the effect of relieving dryness and heat, but you can't eat more, otherwise it will be harmful to your body. Grapefruit is a cool fruit. People with excess heat constitution have vigorous metabolism in summer, the sympathetic nerves are dominant, they sweat more, and they are often red-faced, thirsty, irritable and constipated, especially like to eat cold things, so people with excess heat constitution can eat more cold fruits appropriately.

3. Grapefruit is a citrus tree of Rutaceae. The shoots, leaf backs, pedicels, calyx and ovary are all pilose, the leaves are usually dark purple, and the shoots are flat and angular. Leaves thick, dark green, oval or ovoid; Racemes, sometimes with axillary single flowers; Buds are purplish red and thin milky white; Calyx irregularly 5-3-lobed. The style is thick and long, and the stigma is slightly larger than the ovary. The fruit is spherical, oblate, pear-shaped or wide conical, and its transverse diameter is usually greater than10 cm. There are more than 200 seeds, some of which are seedless, irregular in shape and usually almost rectangular; Cotyledons are milky white and single embryo. The flowering period is April-May and the fruiting period is September-65438+February.