A healthy diet: fruits and vegetables in the anticancer member

About 30%-65% of cancer associated with dietary, that is to say a lot about diet and cancer. There is no doubt, fruits and vegetables are the most important dietary protective factors.

Anticancer mechanism

1antioxidants to fight free radicals. Free radicals are normal metabolic byproduct in the body, can cause a variety of injuries, including the destruction of DNA synthesis, repair, the latter is the most common cancer foundation. Fortunately in vivo exist at the same time removing free radicals of some substances, such as antioxidants to fight free radicals play the gangster"". Most of the antioxidants are from or indirectly from food, apparently through food intake more antioxidants will help to inhibit the carcinogenic effect of free radical. Fruits and vegetables and is rich in antioxidants, such as vitamin C, vitamin E, carotenoid, flavonoid, selenium, plant phenols. In recent years, most of which attract sb.'s attention is present in tomatoes in lycopene, its anticancer effect intensity is beta-carotene (found in carrots, tomatoes, citrus fruits and other foods )2 times.

2 reduction of carcinogens in the synthesis, absorption and activation, thereby indirectly anticancer. Vitamin C can prevent nitrite synthesis, the latter can be transformed into a strong carcinogen nitrosamine; Allium plants such as garlic by inhibiting Helicobacter pylori inhibits the conversion of nitrate to nitrite; polyphenol, vitamin E, retinoid can also reduce nitrosamine formation; dietary fiber to promote defecation, reduce carcinogens absorption; flavonoids could inhibit the benzo ( a ) pyrene hydroxylase activity, which can strengthen the benzo ( a ) pyrene carcinogenesis; cruciferous vegetables in two sulfur based compounds, isothiocyanates, enhanced carcinogen detoxification enzyme activity, thereby allowing the carcinogen degradation.

3 on the cell differentiation, proliferation and gene expression influence. Sulfur compounds and carotenoids can inhibit the synthesis of DNA and protein, promotion of normal cell differentiation; orange vegetables and carrots, radishes can inhibit cancer cell proliferation; vitamin E, flavonoids, selenium, garlic also has similar effect.

4other. Vegetables and fruits of folic acid, vitamin C, the composition of beta carotene, flavonoids and DNA damage repair; isoflavones, dietary fiber, monoterpenes, vitamin E can also regulate apoptosis; retinol class also can enhance airframe immunity against cancer.

Fruit and vegetable in anticancer member

The lycopene in tomatoes, watermelon, cherry. For prostate, lung and gastric cancer prevention effect, on the prevention and treatment of pancreas, colon, breast, uterine cancer also has a certain effect.

Resveratrol and reversal of alcohol present in grapes, selective destruction of cancer cells, prevent the spread of cancer.

Indole -3- methanol and in broccoli and other cruciferous vegetables containing these two kinds of material. The two material can reduce breast cancer, gastric cancer and colon cancer incidence.

Ellagic acid in strawberry contain ellagic acid, its anticancer effect.

Bitter melon protein American scholars discover balsam pear contains a bitter protein, can enhance immunity, inhibit the lymph cancer.

Interferon inducer in a carrot, radish in the antitumor active substances, on the prevention and treatment of oral cancer, esophageal cancer and nasopharyngeal carcinoma effectively.

Carotene in carrot, can reduce the incidence of lung cancer.

Lignin and glycosylated avidin radish contains lignin increased phagocytic foreign body function, strengthen the body's ability to fight. Radish in saccharifying enzymes can also decompose carcinogenic nitrosamines.

Lentinan edodes in the presence of lentinan, is has been proved that effective inhibitors of cancer.

Tea Tuo phenol in the contain in green tea tea polyphenols in phenol, can block blood vessel growth, prevent carcinogenic substances cause DNA damage. Can reduce the risk of gastric cancer, liver cancer, the incidence of esophageal cancer.

Isoflavones, saponins and genistin these substances found in beans, can inhibit angiogenesis, block the development of cancer, breast cancer and colon cancer to good effect.

Trace element selenium and molybdenum compounds found in American scholar, garlic and onions contain selenium compounds can stimulate the body's immune response and cyclic AMP accumulation, inhibit cancer cell division and growth.

V fucoidin found in kelp, experimental studies have showed its effect on colorectal cancer with.

Solanine in eggplant, gastric cancer, colon cancer and cancer of the uterus has certain inhibition.

Protocatechuic acid in spherical lettuce, carcinoma, hepatocellular carcinoma, colorectal cancer and bladder cancer inhibition.

β- zeaxanthin in orange, citrus, has anti-cancer effect.

Conclusion and suggestions

About 30%-65% of cancer associated with dietary, that is to say a lot about diet and cancer. There is no doubt, fruits and vegetables are the most important dietary protective factors. It is worth emphasizing, by the method of limits, researchers can only on a single component to conduct in-depth research, but as anticancer, fruits and vegetables as a whole more effective than individual component of edible. It has been confirmed by a number of authoritative research. Therefore trying to eat a composition capsule instead of fruits and vegetables is not desirable. In addition, because of the different fruits and vegetables contain anti-cancer substances are not identical, its role is different, so it's wise to often eat a variety of fruits and vegetables available anticancer ( of course, if can and other anticancer foods, such as soybeans, grains etc. anticancer" Echelon" better), rather than look for a kind of cancer vegetable.