Genetic predisposition, poor nutrition and exposure to carcinogens, toxic substances lead to cancer. Nutrition directly and indirectly influences risk against cancer. Carcinogens in food can directly influence risk against cancer. Obesity increases the risk against cancer.

One should pay attention to food preferences and habits regarding physical activity and play to reduce the risk against cancer.

- Diet:
Consumption of foods that are smoked, salted, pickled and oily increases your chances to develop cancer. Consumption of orange, yellow and red-orange foods is recommended as they prevent cancer.

Broccoli, garlic and pineapple too protect against cancer. Brussel sprouts, cabbage, cauliflower, mustard greens, radishes and turnips too should be eaten to prevent cancer. Whole grain foods should be preferred as against the processed food. Also, fast foods should be avoided as they only add to the calories intake.

- Physical Activity:
In this competitive world, people have no time for physical activities which can make a person obese leading to increased chances of developing cancer.

Experts suggest that physical activity can help prevent cancer. Increased physical activity decreases risk of breast and colon cancers. Excess weight and increased cancer risk are directly linked.
Jogging and exercises are the recommendations doctors give for preventing cancer.

- Smoking:
Smoking is the main cause of many cancers so smoking should be avoided.