Using diet to prevent and treat diseases has a long history in China. As early as the Zhou Dynasty, China had a "food doctor". Sun Simiao, a famous doctor in the Tang Dynasty, said: "As a doctor, you should know the source of the disease, know what the disease is, treat it with food, and then order medicine." Explain the importance of diet therapy. Diet therapy is more meaningful for cancer patients. It is not only beneficial to relieve the clinical symptoms of cancer patients, but also beneficial to their rehabilitation. Cancer patients should grasp the following three basic principles when using dietotherapy.

Emphasis on nutritional balance, pay attention to strengthening vital energy and tonifying deficiency.

The "internal deficiency" of cancer patients is the main contradiction in the process of disease occurrence and development. Cancer is due to deficiency, deficiency is due to cancer, deficiency is combined with reality, and deficiency is the foundation. The purpose of dietotherapy is to ensure that cancer patients have enough nutritional supplements, improve the body's disease resistance and promote the recovery of patients. The general principle should be to enhance the body's resistance to deficiency. Therefore, Neijing said: "The whole grain, meat, vegetables, food and nutrition are also harmful to it." Under the guidance of the general principle of strengthening vital energy and tonifying deficiency, the diet treatment of cancer patients should be nutritious, diversified and balanced. As Neijing said: "Five grains are for nourishment, five fruits are for help, five livestock are for benefit, and five vegetables are for supplement." If you are biased, it will be harmful.

Familiar with the attribution of sex and taste, emphasizing dialectical feeding

Cancer, like other diseases, has different yin and yang, cold and heat deficiency and excess. Food also has four flavors: cold, hot, cold, bitter, sour and salty. Heat syndrome should be cold and cool, and cold syndrome should be warm; The five flavors have their own paths, sweet into the spleen, pungent into the lungs, salty into the kidney, bitter into the heart and sour into the liver. Xin Wen powder, such as ginger and scallion; Sweet and mild, such as yam, Euryale ferox, caramel; Light and transparent, such as white gourd and coix seed; Sour, such as ebony and hawthorn; Salty and soft, such as laver, kelp, oyster, etc.

Clinical dietotherapy must conform to the principle of syndrome differentiation and treatment, which varies from disease to disease and from person to person. If the syndrome differentiation is that the heat toxin is excessive and the pathogenic fire is inflamed, it is not appropriate to give patients warm supplements, such as longan, litchi, venison, ginseng, mutton, dog meat and prawns. However, vegetables and foods with heat-clearing and detoxicating effects should be given, such as houttuynia cordata, purslane, shepherd's purse and prawns. Another example is patients with spleen and stomach weakness, loss of appetite, abdominal distension and loose stool after operation. Foods that strengthen the spleen and stomach should be supplemented, such as yam, poria cocos, lotus seeds, endothelium corneum Gigeriae Galli and malt. For example, during or after radiotherapy, due to heat poisoning, the symptoms are dry mouth and throat, tongue coating falling off and rapid pulse. You should eat more products that are sweet and cold, nourishing yin and promoting fluid production, such as grass root juice, water chestnut juice and pear juice. , and avoid spicy, spicy, tobacco and alcohol and other irritants. If lung cancer patients see cough, expectoration, blood in sputum, etc. , belonging to yin deficiency and phlegm heat, they should avoid grabbing spicy food, fishy hair and eating stagnation; When all kinds of malignant tumors in liver, stomach and abdominal cavity are complicated with abdominal distension and ascites, we should eat more light osmotic diuretic foods and avoid gas foods, such as taro, sweet potato, onion and pumpkin. In short, we should pay attention to dialectical feeding and reasonable diet.

Choose anti-cancer foods and strive to be targeted.

Medicine and food are homologous, and some foods have both dietotherapy and anticancer effects, so they can be selected and applied in a targeted way. Foods beneficial to digestive system tumors include leek, water shield, Chinese cabbage, black cabbage, lily, sword bean and so on. Among them, the sword bean is sweet in taste and warm in nature, and has the functions of warming the middle warmer and lowering qi, tonifying the kidney and strengthening the spleen. Folk use clove and persimmon to treat esophageal cancer, gastric cancer and liver cancer. Experiments show that it has inhibitory effect on transplanted tumor in mice caused by carcinogenic virus. Foods in daily life, such as garlic, bean products, green tea, etc. It is also an anticancer drug.

Some recent studies show that many foods are beneficial to the prevention and treatment of cancer. For example, goose blood can improve symptoms and increase white blood cells in lung, stomach, lymph, nasopharyngeal and other malignant tumors, and has been developed into tablets; Coix lachryma-jobi seed contains coix lachryma-jobi seed fat, which has obvious inhibitory effect on cancer cells, and is commonly used for lung cancer, intestinal cancer, cervical cancer, choriocarcinoma and so on. Mung beans, combined with licorice and chemotherapy drugs, have the effect of cooling and detoxifying and reducing side effects; Thallus Laminariae, seaweed and laver can soften lumps and disperse nodules when treating thyroid, neck and lung tumors. Mushrooms, water shield, longan, etc. Has different degrees of immunity improvement and therapeutic effect; White lentils can improve the lymphocyte transformation rate of nasopharyngeal carcinoma patients; Sea cucumber polysaccharide extracted from sea cucumber can inhibit the DNA of breast cancer cells and protect liver function. In addition, there are many varieties such as fig, tremella, almond, water chestnut, dark plum, lily, tremella, Polygonatum sibiricum, clam, snail, tit, bird's nest and water shield, all of which have anti-cancer effects.

Hope to adopt.