How Do You Define Nutrition?

Nutrition can be defined as the consumption of food and use of nourishing material contained in the food by the body. Nutrition is a study of the relationship between the diets of a person and the resulting health or disease. It explains the physiologic and metabolic responses of a human body to diet.

The nutrients in the food we take consist of proteins, carbohydrates, vitamins, minerals, fat and water. Imbalance in nutrients causes ill health from excess or deficiency in any one particular nutrient that in turn affects the functionality of the body. Malnutrition or imbalanced nutrition in a child may affect brain, other vital organs, eyesight, weight, height and formation of other parts of the body.

Nutrition as a science developed due to its importance for sports performance. It was considered to be important for the health and performance of athletes and sportsmen. Advances and research in this branch of science has now helped in understanding the importance of nutrition for common people as well.

A nutrient is a chemical that an organism needs to live and grow or a substance used in an organism's metabolism which must be taken in from its environment.
Nutrients are the substances that enrich the body.They build and repair
tissues, give heat and energy, and regulate body processes. Methods for
nutrient intake vary, with animals and protists consuming foods that are digested by an internal digestive system, but most plants ingest nutrients directly from the soil through their roots or from the atmosphere. Some plants, like carnivorous plants, externally digest nutrients from animals, before ingesting them. The effects of nutrients are dose-dependent.
Organic nutrients include carbohydrates, fats, proteins (or their building blocks, amino acids), and vitamins. Inorganic chemical compounds such as dietary minerals, water, and oxygen may also be considered nutrients. A nutrient is essential
to an organism if it cannot be synthesized by the organism in
sufficient quantities and must be obtained from an external source.
Nutrients needed in large quantities are called macronutrients; micronutrients are required in only small quantities. WIKIPEDIAFTW.

It is what we take from our food to have healthy organs, bones etc.

Process of making and using food

Pet nutrition, for instance, is all about giving your animal the nutrients it needs to thrive and survive.

It means when you eat healthy and your body gets nutrition and it helps you poop out.

To me, "nutrition" is the study of the nutrients in foods and how they benefit health.

Nutrition is the provision of material neccesary, in terms of food, to cells and organisms to support life.

I don't know! That is what dictionaries are made! Duh!