What does it mean to be healthy?

The dictionary defines health as the state of being free from illness, disease or injury. The World Health Organization defines health as a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity.

Here at the World's Healthiest Foods our focus is on educating our readers how food and nutrition are essential for good physical health. Food is the key to life. It is the source of energy and essential nutrients that are required to sustain our bodies and prevent disease.

The word nutrition comes from a Latin root nutr-, which means to nurture or nourish. Nourishment is that which sustains life. Therefore, the science of human nutrition focuses on nourishing human life. From the moment of conception until death the body needs energy and nutrients to carry out vital functions such as breathing, digestion, metabolism, and every other physiological process in the body. Nutrition is thus the study of food; its nutritional components; the nutrient requirements of humans; and the means by which humans can maintain health and prevent disease through optimal nourishment from a healthy diet.

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