Essentials of Health - Risk Factors for Cancer
References
Lifestyle and Environmental Risk Factors for Cancer

The following table illustrates that only 30% of the risk factors for cancer may be difficult to control (e.g., genetic, environmental or infectious); conversely, the majority of all identifiable risk factors (70%) are directly linked to our lifestyle and are therefore avoidable and preventable.
Risk Factor

Poor diet

Smoking

Genetic

Infections

Professional exposure

Obesity / Lack of exercise

Alcohol

UV rays

Drugs

Pollution

Other causes
Percentage

30%

30%

15%

  5%

  5%

  5%

  3%

  2%

  2%

  2%

  1%
Adapted from Foods That Fight Cancer: Preventing Cancer Through Diet © 2006 by Richard Béliveau, Ph.D., and Denis Gingras, Ph.D. English translation published by McClelland & Stewart. Used with permission of the Publisher. Original title: Les aliments contre le cancer: La prevention du cancer par l’alimentation. Published by Les Éditions du Trécarré.