According to the FAO / WHO World Declaration on Nutrition (1992) to ensure a sufficient quantity of diverse, healthy food is a basic human right. Satisfaction of nutritional needs and ensuring food safety are important factors in the prevention of a range of diseases and disorders. Therefore, healthy eating and food safety are a requirement for achieving, maintaining and improving the health of people.

Food is essential for human growth, development and body functions. Good nutrition requires a well-balanced diet that provides an adequate daily amount of each class of nutrients and optimum energy input to the human body. Food must be safe, nutritious and available in a sustainable way.