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Foods that help prevent cancer

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By Jimmy Downs

Saturday Oct 20, 2012 (foodconsumer.org) -- many foods can be used to prevent cancer or reduce your risk of cancer. The foods below are not the only foods that you should eat to prevent cancer. Many others such as tofu, broccoli, and garlic can also prevent cancer. 

1, Sweet potatoes

The Japanese view sweet potatoes as the No 1 preventative against a variety of cancer.  Recently a compound called DHEA, which is known to prevent colorectal cancer and breast cancer, has been found in sweet potatoes.

Sweet potatoes are also used as a weight loss aid.   

2, Kiwi

Kiwi fruit is known to contain high levels of vitamin C, which can strength a person's immunity against infectious disease.  Kiwi fruit is also known to be rich in sugar, proteins, lipids, vitamins, organic acids and a variety of minerals.

Kiwi contains 200 mg vitamin C per 100 grams of fruit, which is almost 100 times higher than that found in citrus, 30 times higher than that found in tomatoes.  Additionally, kiwi is high in vitamin P, which is protective against cardiovascular disease.

3, Pumpkin

Pumpkin can be enlisted to effectively prevent obesity, high blood cholesterol and hypercholesterolemia, and cancer.  Pumpkin contains high levels of vitamin A, vitamin C, calcium and dietary fiber in addition to anticarcinogenic tryptophan-P compound.

4, Eggplants

Eggplants have protective effects against cancer.  One non-toxic ingredient extracted from eggplants is effective against stomach cancer and ovarian cancer.

Eggplants contain many other bioactive ingredients including solanine, cucurbitacin stachydrine, choline, basil glycosides, eggplant color glycosides and other alkaloids.  Solanine and cucurbitacin among others have shown a chemopreventative activity.  Eggplant flowers, pedicle eggplant, eggplant root, and ketchup can all be good medicines.  In ancient China,  as evidence showed, candel root was used to treat tumors.

Eggplants are also found rich in many nutrients except that vitamin A and vitamin C are relatively low.  Other vitamins and minerals are comparable to what are found in tomatoes, and protein and calcium are three times higher than those found in tomatoes.

5, Seaweed and kelp

These foods are known to prevent breast cancer and thyroid cancer.

Kelp is rich in iodine, lack of which can result in "thick throat" in children and women.  Kelp can also be used to prevent cancer. One of chemopreventatives found in kelp is sodium alginate, which is able to "chelate" carcinogenic metals strontium and cadmium  and prevent the toxins from entering the blood and increasing risk of cancer.

Kelp can also selectively kill or inhibit the production of carcinogens by intestinal bacteria.  Fiber in kelp can also promote discharge of bile acid and cholesterol.  Seaweed extracts can also inhibit cancer cell growth. 

6, Radishes

Radishes possess anticarcinogenic, expectorant and diuretic activity.  Many types of enzymes found in radishes can eliminate the carcinogenic effects of nitrosamines and lignin can stimulate the body immunity, improve the activity of macrophages, and enhance phagocytic ability to kill cancer cells.

The spicy taste of mustard oil can stimulate peristalsis and promote exclusion of carcinogens.  Some substances which have yet to be identified can inhibit mutagenesis.  Radishes contain 8 to 10 times higher levels of vitamin C than apples and pears. The carrot because of its high levels of carotene has a good anti-cancer effect.

7, Bitter melon

Bitter melon is highly appreciated in Asia.  It is known that this vegetable can be used to prevent diabetes and delay the aging process.  In Ancient China, this food was used as a first line cancer treatment.

The anti-cancer effects of bitter melon come from a quinine-like protein, which can activate proteins in immune cells through which cancer cells and other abnormal cells are killed.  In seeds of bitter melon, a proteinase-inhibitor can inhibit secretion of proteinases from tumor cells preventing cancer cell invasion and metastasis.

8, Wheat bran

Wheat bran is rich in B-vitamins, selenium, magnesium and other minerals and cellulose. Wheat bran can prevent colorectal cancer, diabetes, hyoercholesterolemia, hyperlipidemia, constipation, and hemorrhoids among other things.  Many experts view wheat bran as one of the best anti-cancer dietary fibers. 

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