The first category: fungus
Fungus, such as white fungus, black fungus, hedgehog hydnum, etc., can enhance the immunity and resistance of human body, and has a strong anti-cancer effect. For example, hedgehog hericium contains polysaccharides and polypeptides, which have a strong inhibitory effect on cancer cells. At the same time, it can produce interferon and increase the number of white blood cells, so as to enhance the immune function and play a role in the prevention and treatment of cancer.

The second category: seafood
Seafood contains a large number of trace elements, which has the effects of protecting the breast and inhibiting the growth of cancer. Kelp is a kind of very nutritious and healthy seafood, which has a significant effect of improving the immunity of human body. The extractive of kelp has an inhibitory effect on a variety of cancer cells. It can bring down the blood pressure and cholesterol, as well as prevent atherosclerosis and coronary heart disease. In addition, it is also reported that kelp can prevent breast cancer and thyroid cancer.

The third category: fruits
Fruits, including grapes, kiwi, lemon, strawberry, citrus, etc., not only contain multiple vitamins, but also contain anti-cancer substance, which can prevent the synthesis of the carcinogenic substance--nitrosamine.

The fourth category: vegetables
Vegetables are very beneficial to human health. For example, pumpkin contains very abundant vitamin A, vitamin C, calcium, cellulose, tryptophan, and so on. Eating more pumpkin can prevent obesity, diabetes, hypertension and hypercholesterolemia, so it is a good anti-cancer food. Radish contains a variety of enzymes, which can eliminate the carcinogenic effects of nitrosamines. And it also contains a great amount of vitamin C and lignin, which can stimulate the immune system of the body.

The fifth category: cereals
Cereals such as wheat, corn, soybeans and some other grains are conducive to human health. For example, barley contains a large amount of soluble and insoluble cellulose. Soluble cellulose can promote the metabolism of fat, cholesterol and carbohydrate and reduce the level of cholesterol in the body. While insoluble cellulose is beneficial to the health of the digestive system and can prevent cancer. Corn contains a lot of plant fiber, carotene, lysine, selenium and magnesium, which can enhance the immune function of human body, so as to play a role in cancer prevention. The nutritional value of corn is better than that of wheat flour and rice, so often eating corn can prevent arteriosclerosis, cardiovascular disease, cancer, hypercholesterolemia, hypertension and other diseases.