Eating oranges is good for the health of the elderly. Oranges are rich in sugars, such as glucose, fructose, sucrose vitamins and protein fatty malic acid. Eating an orange every day can prevent cancers such as oral cancer, laryngeal cancer and gastric cancer. Oranges contain a lot of carotene and should not be eaten in excess. Eating too much will make the skin yellow. Citrus fruits are rich in vitamins A, B, C, D and E, and studies have shown that citrus has a special anti-cancer effect. Vitamins A, C and E can neutralize oxidants and reduce potential dimethyl carcinogens in food and intestines. Vitamin A changes the growth of cancer cells and transforms them into normal tissues. Vitamin C can interfere with the combination of nitrate and nitrite with amine and inhibit the formation of carcinogen nitrosamine.
Some oranges are eaten after eating smoked food, so the formation of inferior nitramine in the body can be reduced. Scholars in the Soviet Union have observed that the concentration of vitamin C in cervical cancer tissues is very low, and scholars in other countries have also found that the incidence of laryngeal cancer and esophageal cancer is related to vitamin C deficiency. According to analysis, women who consume less than 30 mg of vitamin C every day have a 6-fold increase in the risk of cervical cancer, while women who consume less than 90 mg of vitamin C every day have a 2.5-fold increase in the risk of cervical cancer. Therefore, eating citrus regularly is undoubtedly an ideal and effective measure to prevent cancer.
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