Improper diet can cause cancer, but eating the right food can also prevent cancer. There is no lack of cancer prevention and anti-cancer substances in nature, and they are widely found in natural foods.
Sweet potato
Among 20 kinds of vegetables that have significant inhibitory effect on tumor cells, sweet potatoes rank first, and the cancer-inhibiting rate of cooked sweet potatoes is 98.7%, while the rate of raw sweet potatoes is 94.4%. Researchers found that sweet potatoes contain anti-cancer substances that inhibit the growth of cancer cells, called glycolipids; sweet potatoes also have an active substance called deoxyisosterone, which can inhibit and kill cancer cells, and can revive the weakened immune system to prevent and control breast and colon cancer.
Grapes
Grapes have strong anti-cancer properties because they contain resveratrol that prevents healthy cells from becoming cancerous and inhibits the spread of already malignant cells. Resveratrol has been found in more than seventy plants, including grapes, mulberry and peanuts, although grapes and grape products contain the highest levels of resveratrol. All wines contain some amount of resveratrol, with the highest amount in red wine, so regular consumption of red wine has some cancer prevention effects.
Carrots
Research has found that carotene contained in carrots can be converted into vitamin A in the body, which has anti-cancer and anti-cancer effects. Carrots also contain high levels of folic acid, which also has anti-cancer effects. The lignin contained in carrots can improve the immunity of the organism by 2-3 times, thus indirectly inhibiting or destroying carcinogenic substances and cancer cells in the body. In addition, molybdenum in carrots can also prevent and fight against cancer. Therefore, regular consumption of carrots can prevent the occurrence of cancer.
Cauliflower
The cancer prevention effect of cauliflower lies firstly in the indoles contained in it, which can reduce the level of estrogen in human body and can prevent the occurrence of breast cancer; and indole derivatives such as aromatic isothiocyanic acid and dithiophenone can resist the toxicity of carcinogenic substances such as benzo(a)pyrene. This time, cauliflower contains an enzyme substance – radicicicin, which can deactivate carcinogens and reduce the occurrence of gastrointestinal and respiratory cancers, so nutritional medicine believes that women with stomach problems, especially those with a family history of breast cancer, eating more cauliflower can prevent the occurrence of stomach cancer and breast cancer. In addition, cauliflower contains more fiber, vitamin C, carotene, and trace elements, all of which have anti-cancer effects. Cauliflower can also prevent prostate cancer. Studies in the United States have found that eating vegetables from the cruciferous family reduces the risk of prostate cancer in men. However, eating cauliflower must rely on chewing in order for its anti-cancer effects to work.
Mushrooms
A Japanese experiment proved that the anti-cancer rate of polysaccharide in shiitake mushroom is 80%-95%, which has significant effect on many malignant tumors such as leukemia, esophageal cancer, stomach cancer, intestinal cancer, lung cancer and liver cancer. Shiitake mushroom contains a kind of “β-glucosidase” substance, which can strengthen the body’s anti-cancer effect. A Japanese experiment proved that the anti-cancer rate of polysaccharide in shiitake mushroom is 80%-95%, and it has significant effect on many malignant tumors such as leukemia, esophageal cancer, stomach cancer, intestinal cancer, lung cancer, liver cancer and so on. In addition, when cancer is in its initial stage, insisting on eating shiitake mushrooms can inhibit its development and even make it disappear. This is because shiitake mushrooms not only contain polysaccharides, but also double-stranded RNA, an inducer of interferon, which can enter cancer cells to inhibit their proliferation. Consistent consumption of shiitake mushrooms after various cancer surgeries can also prevent the metastasis of cancer cells. Enoki mushroom stems contain a protein that stimulates the natural anti-cancer mechanism in the body of cervical cancer patients, thus allowing them to rely on their own immunity to fight cancer cells. Pine mushroom contains more than ten kinds of effective anti-cancer ingredients, among which pine mushroom polysaccharide is the strongest known stimulant of adjuvant T lymphocytes, which can effectively inhibit the growth of cancer cells, has strong anti-radiation, anti-tumor activity, anti-radioactive substances to harm body cells and inhibit the value-added of tumor cells, and can absorb and excrete carcinogenic substances and stop chemicals, radiation and viruses from causing cancer.
Grapefruit Citrus
Calcium present in natural foods can prevent colorectal cancer, and one of the best natural foods to supplement calcium is grapefruit, which contains 519 mg of calcium per 100 g of grapefruit, so regular consumption of grapefruit can prevent the occurrence of colorectal cancer. Grapefruit can also be used as a preventive protective food for cancer patients before radiation therapy. Scientists have also found that grapefruit peel itself has the same strong anti-cancer activity as ginseng, and the inhibition rate of cervical cancer cells is as high as 70%-90% in in vitro tests. Citrus juice there is a very strong anti-cancer substances, namely, “nomilin”, it can make the decomposition of carcinogenic chemicals, greatly reducing its toxicity, but also can cut the long carbon chain of viral nucleic acid, inhibit the growth of cancer cells, to prevent the occurrence of stomach cancer. In addition, there is also a kind of substance called terpene in citrus, which and ellagic acid in berries can activate the protein molecules in cells to surround the carcinogenic substances that invade human cells, and use the phagocytic function of cell membranes to discharge the carcinogenic substances out of cells, thus preventing the occurrence of cancer.
Marine products
Currently, various marine drugs extracted from marine organisms have shown unique efficacy in cancer prevention and anti-cancer. Seaweeds such as kelp, nori and wakame have certain anti-cancer effects. Seaweed contains many trace elements, iodine is especially rich, and its organic iodine is absorbed and excreted slowly in the body, which is quite effective in preventing cancer. In addition to containing various nutrients such as protein, fat and minerals, kelp can selectively filter out carcinogens such as strontium and cadmium. At the same time, because the fiber it contains is not easily digested, it can increase the amount of stool and promote the excretion of certain carcinogens in the body, which helps prevent cancer health. Marine fish contains anti-cancer fitness substances. For example, certain substances in cod liver oil have a certain inhibitory effect on tumor necrosis factor and interleukin produced by white blood cells. The consumption of cod liver oil in appropriate amount is not only beneficial to the elimination of inflammation in human body, but also can improve the urination function of human body and reduce the impurities in blood. Shark cartilage contains a factor that inhibits the formation of tumor blood vessels, so it can inhibit tumor growth. Fish squalene isolated from shark liver has a better anti-cancer effect and lower toxicity. The active ingredients of sea cucumber, such as oxycodin, ginsenoside and acidic mucopolysaccharide, also have the function of anti-cancer and inhibiting the metastasis of cancer cells.
Asparagus
Asparagus, or lobelia, contains a variety of anti-cancer nutrients. First, it is rich in a kind of histone that can effectively inhibit the growth of cancer cells; second, the large amount of folic acid, nucleic acid, selenium and asparaginase in asparagus can well inhibit the growth of cancer cells and prevent the spread of cancer cells; third, and the most important point, that is, asparagus extract can promote the double-stranded breakage of cancer cell DNA, which makes asparagus anti-cancer with the most selective that scientists hope for: it can directly kill cancer cells, but it can also directly kill normal cells. This gives asparagus the selectivity scientists want: it can kill cancer cells directly, but has no side effects on normal cells. It is important to note that when asparagus is used as an aid in the treatment of tumor disorders, it is important to ensure that it is consumed daily to be effective. Asparagus can be stir-fried, boiled, stewed, served cold, or made into soup, but should not be eaten raw, as it may cause bloating and diarrhea.
Tomatoes
Tomatoes are rich in lycopene, which has a unique antioxidant capacity to scavenge free radicals, protect cells from damage to deoxyribonucleic acid and genes, and stop the cancer process. Its secretion of cytokinin activates the lymphocytes’ lysis of cancer cells. In addition to its preventive effect on prostate cancer, tomatoes are also effective in reducing the risk of pancreatic, rectal, laryngeal, oral, lung and breast cancers.
Soybeans
Soybeans are very effective in preventing breast, colon and rectal cancers. A diet containing as little as 5% soy or its products can significantly inhibit the chemical carcinogens that induce breast cancer. Soybeans are rich in isoflavones, which is a weak estrogen. Regular consumption of soybeans by pre-menopausal women can have a good regulating effect on estrogen secretion, thus reducing menopausal symptoms and regulating the response of the breast to estrogen, making the breast tissue less prone to abnormal changes and having a preventive effect on breast cancer. Soybeans contain a variety of trace elements, such as cobalt, selenium, molybdenum, etc. Regular consumption of soybeans and tofu can significantly reduce the risk of colon cancer and rectal cancer.