Diet is a double edged sword. Improper diet increases the risk of cancer but a proper, well balanced diet reduces the cancer risk.

Diet is one of the most important lifestyle factors and has been estimated to account for up to 80% of cancers of the large bowel, breast, and prostate. Diet affects the risk of many other cancers, including cancers of the lung, prostate, stomach, esophagus and pancreas.

Prostate Cancer:
High consumption of meat, especially red meat, substantially increases the risk of prostate cancer.

Vegetables, especially cooked tomatoes, reduce the risk of prostate cancer. In one clinical trial, the role of Vitamin E as a prostate cancer reducing factor was established. In this study there was a 32% decrease in prostate cancer incidence and 41% decrease in prostate cancer mortality in people receiving Vitamin E supplements when compared to controls.

Breast Cancer:
In Japan, people consume Tofu, a soya product. It contains isoflavones that moderate the estrogen receptors in the body such as breast tissue. The incidence of breast cancer is low in Japan when compared to Western women; only 1/4th of the mortality rate of Western women. Japanese women's low fat diet, high fish consumption and drinking green tea also decrease their breast cancer risk.

One case control study found that regular consumption of soy foods was associated with a marked decrease in breast cancer risk in premenopausal women. No effect in post-menopausal women.

A Japanese case-control study also found that tofu intake (3 times/wk compared with less than 3 times/wk) was associated with decreased risk of breast cancer in premenopausal women. Again, soy intake was not protective against post-menopausal breast cancer.

In one study conducted in America, the relation between soy intake and breast cancer risk found that tofu consumption was protective in both premenopausal and post menopausal Asian women.

Lung Cancer:
Lung cancer risk is substantially decreased by a variety of carotenoids. Carotenoids act as antioxidants and thus minimize cell damage.

One study in Boston focused on the effect of different types of carotenoids on lung cancer risk. It was observed that lung cancer risk was significantly lower in subjects who consumed a diet high in a variety of carotenoids. This was especially true with non-smokers who had 63% less risk.

One study conducted in Hawaii reported further evidence for a protective effect from certain carotenoids against lung cancer and that greater protection was afforded by consuming a variety of vegetables compared to only foods rich in a particular carotenoid.

Stomach Cancer:
Nitrates in food and other preservatives added to food including meat are converted into 'nitrites' in the human stomach. The nitrites undergo nitrosation to form 'nitrosamines' and 'nitrosamides'. This increases the risk of stomach cancer in people eating vegetables from nitrate rich soil.

In one study, Vitamin C appeared to protect against the risk of stomach cancer by inhibiting formation of nitrates in stomach.

Cancer of the stomach is 5 times more common in Japanese people compared to Western populations. When Japanese people migrated to the United States, they progressively acquired the low incidence of the US due to changes in their diets.

In one study conducted in Hawaii that involved both Japanese and Caucasians, the stomach cancer risk was associated with consumption of rice, pickled vegetables, and dried/salted fish, and a negative association with vitamin C intake.

One ecological study in Belgium showed a relation between the nitrate and salt consumption and stomach cancer. The analysis of this model showed that the significance of nitrate as a risk factor for stomach cancer mortality increased markedly with higher sodium levels.

Dietary habits and stomach cancer risk was studied in Shanghai, China. According to this study, risks of stomach cancer were inversely associated with high consumption of several food groups, including fresh vegetables and fruits, poultry, eggs, plant oil, and some nutrients such as protein, fat, fiber, tea and antioxidant vitamins.

By contrast, risks increased with increasing consumption of dietary carbohydrates, frequent consumption of preserved, salty or fried foods and hot soup/porridge, with irregular meals, speed eating and binge eating. This provides evidence that diet plays a major role in stomach cancer risk.

No single food can completely prevent cancer but a balanced combination of different groups can help. Appropriate diet can prevent 3-4 million cancers each year. 

Cancer Centres in USA compared the lifetime sun exposure in men with advanced prostate cancer and men without disease and they suggest that men who had spent more time in the sun they lives were with low risk of prostate cancer.

New studies in prostate cancer indicate that the men who spent more time in the sun in their live usually can reduce prostate cancer in about 50%

About the above point shown that the prostate uses Vitamin D to promote the normal growth of prostate cells and in consequence to slow the spread of prostate cancer cells to others parts of the body.

Sun exposure prevent prostate cancer and the new research suggest vitamin D in supplement may be a safer option today for men.

Previous studies have shown that many places which long winter like Canada and North America men do not adsorb Vitamin D and others nutrients.

In Canada men do not adsorb vitamin D in consequence one of the seven can develop prostate cancer in their lives;
USA new researches indicate that one of the five men can develop prostate cancer.

Researchers shown that vitamin D has many micronutrients promote and prevent the prostate cancer in men.


About the author:
Hector Milla; editor of the cancer -10.com and you can find more articles about prostate cancer in http://www.cancer-10.com, or heart disease symptom information visiting http://www.heartdiseasesympton.com ,you can reproduce this article in your web site or ezine articles always mention above the author article.

A cancer diet needs a good balance of minerals because minerals are needed by all cells for proper function. Patients are often found to be mineral deficient, so this is an area of the diet that needs particular attention.

There are two classes of minerals. Macrominerals, such as the well known calcium, magnesium, sodium, potassium and phosphorus, and microminerals, such as boron, chromium, copper, iron, iodine, germanium, sulfur, silicon, vanadium, zinc, manganese and molybdenum.

The good news is we will get most of the minerals we need, provided we are eating a diet based on a wide variety of fruits and veggies, with the addition of nuts, seeds and grains.

Where we can get in to trouble is that minerals are washed out of soils with constant rain, and modern fertilizers don't usually contain the wide variety of minerals we need. Organic gardeners usually use rock minerals on their soils and this results in organic produce have a much higher and broader range of minerals.

Germanium is one micromineral that cancer patients are often low on. It is essential for immune function and is critical to tissue oxygenation. Cancer grows rapidly where there is low oxygenation of cells. Germanium is found in broccoli, celery, garlic, onions, rhubarb, sauerkraut and tomato juice as well as aloevera and ginseng.

Iodine deficiency has been linked to breast cancer in more than one study. Seasalt contains iodine and a variety of minerals rather than the isolated highly processed iodine additive in table salt. Asparagus, garlic, lima beans, soybeans, sesame seeds all contain natural iodine along with the nutrients needed for good absorption.

Large amounts of brassicas eg brussels sprouts, cabbage and cauliflower, along with peaches, pears and spinach can block absorption of iodine, so ensure there is a balance of iodine rich foods in your diet.

Selenium has been linked to cancer. Selenium and Vitamin E work together to attack free radicals. Selenium is critical for pancreatic function, and pancreatic enzymes are critical to the bodies ability to fight tumour activity. This mineral is generally found in meat and grains, however countries such as New Zealand and much of America is known to have selenium deficient soils.

As there have been several studies showing that good selenium levels have significantly reduced the risk of cancer, this is one mineral you want to have enough of.

Food sources that should be included frequently in a cancer diet are: brazil nuts, broccoli, brown rice, brewers yeast, chicken, kelp, onions, salmon, seafood, tuna, wheatgerm and whole grains. Garlic, chamomile, ginseng and parsley are all easy to use concentrated forms that can be added to the diet daily.

A couple of warnings:

Be very careful about self-dosing with minerals as several of them will block absorption of others if the dose is too high.

Again, eating a variety of foods, with particular notice taken of those that have high mineral levels is the safest way to go. If you wish to explore mineral supplementation further, talk to your naturopath or nutritionist. But whatever you do, don't ignore the importance of these vital elements to your well being.