what is cancer prevention ? is cancer preventable ? do you know cancer can be prevented ? Prevention is an action taken to lower the chance of disease. Nearly 40-50% of cancers cases can be prevented by following ways. 1. Avoid / Quit Tobacco consumption 2. Eat Healthy - Keep regular intake of fruits, green leafy vegetables. Limit processed meat. Limit alcohol consumption 3. Maintain Healthy Weight; Regular Physical Activity 4. Get vaccinated against cancer causing infections 5. Regular Health Check up.