This list is from The Institute of Work and Health. I believe that health education-Primary-is what we should all focus on with nutrition education being forefront.

Primary prevention

Here the goal is to protect healthy people from developing a disease or experiencing an injury in the first place. For example:

* education about good nutrition, the importance of regular exercise, and the dangers of tobacco, alcohol and other drugs
* education and legislation about proper seat belt and helmet use
* regular exams and screening tests to monitor risk factors for illness
* immunization against infectious disease
* controlling potential hazards at home and in the workplace

Secondary prevention

These interventions happen after an illness or serious risk factors have already been diagnosed. The goal is to halt or slow the progress of disease (if possible) in its earliest stages; in the case of injury, goals include limiting long-term disability and preventing re-injury. For example:

* telling people to take daily, low-dose aspirin to prevent a first or second heart attack or stroke
* recommending regular exams and screening tests in people with known risk factors for illness
* providing suitably modified work for injured workers

Tertiary prevention

This focuses on helping people manage complicated, long-term health problems such as diabetes, heart disease, cancer and chronic musculoskeletal pain. The goals include preventing further physical deterioration and maximizing quality of life. For example:

* cardiac or stroke rehabilitation programs
* chronic pain management programs
* patient support groups