Nutrition has come a long way. It used to be about looked at from a medical perspective: substances in food and how they prevent disease, restore health, or produce a desired change in response to environmental change. However, nutrition is not that limited. There are still people out there who live in centuries past and only look at nutrition from the medical perspective.
Nutrition as a science has not abandoned the medical aspect, it rather adds to it. It now integrated with varying disciplines including biology, biochemistry, physics, economics, microbiology, agriculture, anthropology, etc.
Even before you eat, you will need to acquire the food. This will also depend on many factors including the food available, the financial resources (if you will purchase), how near to the food source you are, how safe the food is, and so on.
- Nutrition is the provision, to cells and organisms, of the materials necessary (in the form of food) to support life. (Wikipedia)
- Nutrition is the intake of food, considered in relation to the body’s dietary needs. (WHO)
- Nutrition is the science that deals with food intake and its utilisation by the body.
- Nutrition is the science of nourishing the body.