Topic 1 Introduction


Nutrition is a critical part of health and development. A healthy diet means that there must be a balance between energy intake (calories) and energy consumption. Nutrition is the use of nutrients in the body by consuming nutrients that provide bioactive components and nutrients necessary for the maintenance of life, growth and development, improvement, protection and development of health, improvement of life quality, and productivity. The factors that make up a healthy diet may differ depending on the individual’s needs, available foods, dietary traditions, cultural norms, and other matters.

Consuming a healthy diet throughout life helps prevent a number of non-contagious diseases (diabetes, cardiovascular disease) as well as any form of malnutrition. At the same time, increased production of processed foods, rapid urbanization and changing lifestyles have led to a shift in dietary patterns. People are now consuming more foods high in terms of energy, fats, free sugars and salt/sodium, and many people do not eat enough fruit, vegetables and other dietary fibers such as whole grains.