Anti-cancer superfoods

The list of dietary influences on cancers is long. Diets low in fruits and vegetables are factors in many cancers, those high in salt contribute to stomach cancers and those too high in calories overall can promote hormone cancers such as breast. Smoked and burned foods, such as those cooked on barbecues, are significantly linked to many cancers. And regular alcohol intake is strongly linked to increased breast cancer risk in younger (premenopausal) women. Additionally, smoking remains one of the biggest killers as a trigger of lung cancer.

But the good news is that while some foods, and chemicals in foods, have cancer-promoting, or carcinogenic effects, many more foods have very positive effects on the initiation and progress of cancer. They have strong anti-cancer effects that have been identified in countless research papers.

So next time you go to the supermarket, make a point of adding the following foods to your basket. By eating these foods on a regular basis you can significantly reduce your statistical risk of developing a number of types of cancer.

Broccoli
Effective against: most cancers
Works because: the slightly bitter flavour of broccoli (and its cousins Brussels sprouts, cabbage and cauliflower) is the reason for the impressive track record these vegetables have in deterring cancer. The bitter chemicals isothiocyanates and glucosinolates actually interfere with cancer progression and deactivate harmful oestrogens associated with hormonal cancers such as breast and ovarian cancers.

Garlic
Effective against: stomach, colon and most cancers
Works because: the smelly compounds in garlic are potent anti-cancer agents. All of the onion family, including leeks and shallots, contain these compounds but garlic is the most rich. Trials have shown that chemically induced cancers can be interrupted by the active compounds formed from allicin from garlic. To get the most out of garlic chop the clove and leave it to `mature' in the air for 15 minutes, and then use it in your cooking. Heating prior to this 'maturation time' by air neutralises the important compounds.

Tofu
Effective against: breast, ovarian and prostate cancers
Works because: the isoflavones the soya bean contains have a gently oestrogen-mimicking effect in the human body. This helps to block the effects of more aggressive oestrogens, both natural and those from environmental chemicals from sources such as plastics and pesticides. This has the effect of limiting the risk of hormone-linked cancers in both women and men. Tofu may be more effective than other soya products or soya supplements as it has been fermented and so some potentially negative compounds are neutralised. The Japanese and Chinese who eat tofu regularly have low risks of these cancers.

Oily fish
Effective against: colon, prostate and breast cancers
Works because: the omega-3 fatty acids have a profound effect on cell metabolism and communication. These fatty acids also act as anti-inflammatory agents, which may be a reason for their influence on colon cancer. When the diet is higher in polyunsaturated fatty acids, such as the omega-3s, it also limits the intake and the effects of saturated fats, which are linked to increased risk of some cancers.