Unfortunately, there is no one magic supplement regime you can embark on to either prevent or treat cancer. However, there is sufficient evidence that certain nutrients, phytochemicals, fatty acids, hormones, and enzymes can play a major role.

Here is Daniel Field's Nutritional Guide for Cancer Prevention 2008

Whilst this guide shows you which food the latest research has found is poor, suspect or good at preventing and surviving cancer in humans, it is mportant that before you aim to create the perfect diet for your needs you know your metabolic type. We are all different and have different requirements.

Find out your own metabolic type first at  www.healthexcel.com 

Fish, Fish Oils and Cod Liver Oil  Be Smart

Sadly researchers have found that mercury in rivers and PCBs in the sea as well as a host of other potentially lethal heavy metals have contaminted most of the world's fish stocks. Even Fish Oils, unless purified, contain mercury so the eating of fish as a basic healthy diet is no longer an option for most of us. The future of fish eating may lay with farmed fish, bred more with our health in mind than price and yield. At present fish farms rely on antibiotics, growth hormones and other 'extras' known to cause cancer whilst increasing their yield. Scientists have found that consumption of EPA, DHA omega-3 fatty acids are safer if derived from both Fish Oil and Cod Liver Oil. These reduce the risk of prostate and breast cancers as well as providing many other health benefits.  Cod Liver Oil is best taken in Winter as it also contains Vit D, very important at preventing many cancers. Fish Oils are best taken as a supplement in summer as the sun provides all the Vitamin D you need.  Our advice is to avoid all fish and take an Omega 3 fish oils supplement such as Carlson's which produce toxin and mercury free Fish Oils.

Golden Algae  Vegan and a pure form of Omega 3

Golden Algae may be the scourge of lakes when it blooms but it is a superb source of this essential nutrient that is important in preventing cancers as well as improving actual brain power. 

Multi-Vitamin Supplements Good Idea

In the report studying the effects of eating hot dogs and hamburgers, the association between processed meat eating and leukaemia was weakest among children who took multi vitamins. Processed meats, such as hot dogs contain nitrates and nitrite, these are precursors to carcinogens. Researchers found  multivitamins keep nitrates and nitrites from converting into these carcinogens. Therefore, the association between multi vitamin consumption in children and protection against childhood cancers remains completely plausible.

CoffeeSuspect

Most research has shown coffee drinkers are at increased risk of bladder cancer, though in one case the relationship was found only in men. In another study, the association was found only with caffeinated coffee. A review found a small  increased risk of bladder cancer in coffee drinkers compared with people not drinking coffee.

Processed, Inorganic and even Organic Meat  Very Bad

Processed meat often contains nitrites and nitrates which have been connected to cancers including Leukemia. Inorganicaly reared meat can contain female hormones that can incfrease the incidence of both breast and ovarian cancers. As well as these there are a host of other chemical additions your average animal consumes that are unlikley to keep you in good shape in the longer term. All meat eaters, even those that consume organic meat have been shown to develop higher incidences of a broad range of cancers when compared to mainly vegetarian consumption.   

Dietary FatBad
Consumption of dietary cholesterol  has found animal fat in general correlates with the risk of ovarian cancer and with the risk of uterine cancer. Some of the excess risk appears to result from increased body weight that results from a high-fat diet. Although some preliminary human research has found no relationship between dietary fat intake and the risk of skin cancer, patients with basal cell and squamous cell skin cancers who were put on a for two years were reported to show a significant decrease in the number of new skin cancers compared with patients who maintained a high-fat diet. Similarly, pre-cancerous lesions of the skin have been prevented in people put on a low-fat diet. .

PolyunsaturatesNo problem

However, in humans, most, though not all, reports do not find an association between polyunsaturates and cancer risks. Good news if you cook with olive, grape or walnut oils. Do not consume corn though which contains omega-6 fatty acids, which have been found to increase cancer growth.

SaltBad

In preliminary research, increasing intake of salt correlates with increased risk of stomach cancer. Associations between foods preserved with salt and the risk of cancers of the head and neck have also been reported.

WheyGood

Animal studies suggest that the antioxidant or immune-enhancing effect of whey may produce anti-cancer effects. Preliminary human case reports suggest that 30 grams per day of whey protein may improve responses to anti-cancer medications, but more research is needed. Whey is a by-product of cheese making. It is formed when the curds separate from the milk or cream. After the cheese curds are formed, the remaining liquid is called whey. This liquid is watery and thin. Sometimes whey has a tinge of bluish colour, but this depends on the quality and type of milk used. Whey can be made from any type of milk, with cow's milk being the most popular in the West. Goat's milk is commonly used in the Middle East and in some desert areas, camel's milk is used.  

Some Phytochemicals found in plant foods really help protect against cancer

Phytochemicals are a fascinating yet mysterious group of thousands of chemicals found in plant foods. Some protect against cancer when isolated, some do not are many have yet to be discovered. It is known that many phytochemicals, when kept in their natural food forms, can protect us from cancer as they interact with other phytochemicals and the cells in our bodies.

Phytoestrogens Excellent

Some of the most extensively researched phytochemicals are phytoestrogens which include isoflavones (high amounts of which are found in soy foods), coumestans and lignans. These chemicals may protect against breast cancer by protecting cells from estrogen. Because of their similar structure to estrogen—hence the name "phytoestrogen"—these plant estrogens are able to take up space on estrogen receptors where the body's estrogen otherwise would have attached.  Because these plant estrogens are much weaker than human estrogen, they help minimise the hormonal activity that is believed to promote cancer growth.

 Red Chili Peppers Excellent

Studies have looked at the chemotherapeutic potential of capsaicin, the "hot" ingredient in Red Chili Peppers that is believed to be associated with antioxidative and anti-inflammatory activities. Researchers found Capsaicin exhibited major anti-cancer activity (it induced programmed cell death to human cancer cells without affecting normal cells) against pancreatic cancer, an aggressive form of the disease typified by exceptionally poor outcomes.

Tomatoes Good
Higher intake of tomatoes or higher blood levels of lycopene correlated with protection from cancer. Evidence of a protective effect for tomato consumption was strongest for cancers of the prostate, lung, and stomach, but some evidence of a protective effect also appeared for cancers of the pancreas, colon, rectum, oesophagus (throat), mouth, breast, and cervix. Cooked tomatoes such as soups and paste are better for you than tomatoe sauce and canned tomatoes. 

Broccoli Very Good

Another group of powerful phytochemicals are the (PEITC) isothiocyanates present in cruciferous vegetables (such as broccoli, cauliflower, and Brussels sprouts), which have been shown to prevent lung cancer among non-smokers as well as demonstrating a remarkable effects against ovarian cancers. After ovarian cancer cells were exposed to PEITC for 24 hours, researchers found the effect of epidermal growth factor receptor (EGFR) -- which spurs the growth of ovarian cancer cells -- was significantly inhibited.

Garlic  Very Good

Another important phytochemical is the compound allicin found abundantly in fresh garlic and in smaller amounts in onions, chives, and leeks. This chemical acts as an antioxidant similar to vitamins A, C, and E, and may help protect the body from free radicals. It is also possible that allicin fights cancer by reacting with carcinogens and changing their structure so they can no longer initiate tumours or by speeding the death of cancer cells that have already formed.

 Green Tea

The group of phytochemicals called catechins found in black and green teas, wine and some fruits such as apples, function similarly to allicin. These antioxidants prevent cancer and kill cancer cells that have already formed. Recent studies have shown that catechins may help prevent stomach and prostate cancer in particular.

 GrapesExcellent

You may have heard about some favourable effects of red wine. This is apparently due to the phytochemical respiratory ), which shows a dramatic tendency to decrease risk of many types of cancer. The question as to whether or not the best source of respiratory is red wine remains debated, considering the high caloric content of wine and alcohol's possible role in breast cancer. Healthier sources of Resveratrol include- grapes, berries, and peanuts. The ways in which Resveratrol helps fight cancer are manifold: Studies show that resveratrol may slow tumour growth in the lungs by preventing the replication of DNA,  prevent tumours from forming both in the lungs and the colon by destroying potential carcinogens, prevent liver cancer because of its antioxidant activity,  prevent breast cancer by protecting cells from the harmful effects of linoleic acid, a type of fatty acid implicated in breast cancer and arrest the growth of leukaemia cells.

Wheat Bran Excellent

Another beneficial phytochemical is phytic acid found in wheat bran, which may prevent colon cancer.

Apples Excellent

Another beneficial phytochemical is Quercetin (a flavinoid) found in apples, onions, tea, berries, brassica vegetables (broccoli, cauliflower, Brussels sprouts, bok choy), various seeds and nuts, some medicinal botanicals, including Ginkgo biloba and St. John's Wort. Quercetin demonstrates a powerful phytochemical effect  in the prevention of many common cancers.

Celery  Excellent

Another beneficial phytochemical is apigenin found in abundance in Chinese cabbage, bell pepper, garlic, French peas, guava and celery.

Flax Seed Oil Limit Quantity

A recent study of about 47,000 men has found that higher levels of ALA omega-3 fatty acids fond in Flax Seed stimulates the growth of prostate tumours in men. Of the men monitored over 14 years, some 3,000 struggled with prostate cancer and about one in seven were suffering from the advanced stages of the disease. Researchers found men who were suffering from advanced prostate cancer had higher quantities of ALA from Flax Seed as well as meat and dairy sources. ALA in low quantities is important so eat moderate quantities always.

Other Seeds Moderation  

Another beneficial phytochemical is hexaphosphate. IP-6 (inositol hexaphosphate) is a component of certain dietary fibers, particularly most cereal grains, legumes, and seeds high in oil. Many researchers believe some of fiber's health benefits may be due to the antioxidant, immune-enhancing, and cardiovascular-supporting activities of IP-6. Research has shown IP-6 to have significant cancer preventative and growth-regulating effects on certain cells and tissues, including those of the colon, breast, and prostate. Seeds particularly Flax should be consumed in moderation whilst Legumes are a safe source of this important phytochemical.

Tips for Increasing Phytochemicals in Your Diet

• Use fresh or frozen vegetables instead of dried or canned.
• Keep cooking to a minimum. Most phytochemicals do not fare well when exposed to high temperatures.
• Add fresh garlic (not garlic powder) to almost any meal. Or if a recipe already calls for garlic, just add more than it recommends.
• Eat whole, not refined, grains. Phytochemicals are found in the highest concentrations in the nutrient-rich fiber that coats the starchy centre of the grain. During processing, this fiber is usually lost.
• Eat a variety of vegetables. Try something new at least once a week and continue to incorporate the new vegetables into your meals.

A quick round up of well researched phyto-chemically-rich foods sources

Allium-garlic, leeks, chives, onions

Apigenin-Chinese cabbage, bell pepper, garlic, French peas, guava, celery

Catechins-green tea, black tea, wine, coffee, apples

Coumestans- clover, alfalfa sprouts

Isoflavones-tofu, soybeans, tempeh, soy milk, textured vegetable protein

Isothiocyanates -broccoli, cauliflower, kale, turnips, collards, Brussels sprouts, cabbage, kohlrabi, rutabaga, Chinese cabbage, bok choy, horseradish, radish, watercress

Phytic acid-wheat bran

Quercetin-apples, onions, tea, berries, brassica vegetables (broccoli, cauliflower, Brussels sprouts, bok choy), various seeds and nuts, some medicinal botanicals, including Ginkgo biloba and St. John's Wort

Resveratrol-grapes, berries, peanuts, red wine