Key points for cancer prevention Eat a healthy diet: try to include at least five portions of raw fruit and vegetables every day, limit your intake of fat, particularly saturated fats and fatty meats, avoid alcohol as far as possible, and drink lots of pure water. Get moving: exercise for 30 minutes or more at least five days of the week. Brisk walking, dancing, playing with children or active housework are appropriate forms of exercise. But don't overdo it and seek medical advice if you are starting from a zero fitness level. Maintain a normal body weight: a healthy diet and exercise are important to achieve this. Stop smoking and try, as much as possible, to avoid inhaling all forms of secondary smoke. Boost your immune system: there are a variety of natural foods one could take for this, like bee pollen and marine plants, but do your own research to determine what is suitable for you. Watch your stress: be positive, slow down, get enough rest and work on your life issues. Meditation or yoga could help. Be sun smart: use sunscreen, stay in the shade and don't use indoor tanning beds or sunlamps. Go for regular screening: early detection of cancer increases the chances of successful treatment.