Part I - Dieting Trends and Health

Summary

Part I gives an overview of healthy dietary patterns recommendations (the World Health Organization, the United Kingdom National Health Service’s Eatwell Guide, the EAT-Lancet reference diet) to illustrate objective information on a healthy diet. In addition, it defines and describes sustainable healthy diets. It presents a summary of theories of health behaviour and their use in healthy eating interventions (e.g. the Social Cognitive Theory, Theory of Planned Behaviour, the Health Belief Model, the Transtheoretical Model and the Self-determination Theory). A summation of the highlights is included at the end of this chapter.