What Is Nutrition? Why Is It Important?

Nutrition is the study of how the body uses the nutrients in food and how diet affects health and disease.

Nutritionists use ideas from molecular biology, biochemistry, and genetics to figure out how nutrients affect the human body.

Nutrition also looks at how a person’s diet can lower their risk of getting sick, what happens if they get too much or too little of a nutrient, and how allergies work.

Nutrients provide nourishment. Nutrients are things like protein, carbs, fat, vitamins, minerals, fiber, and water. People are more likely to get certain health problems if they don’t get the right balance of nutrients in their food.

This article will explain what nutrients people need and why they need them. It will also look at what a dietitian or nutritionist does.


Nutrition is the study of what we eat and how it makes us feel. To get a wide range of nutrients, people need to eat a variety of foods.

Some people choose to eat a certain way, focusing on certain foods and staying away from others. People who do this might have to plan ahead to make sure they get all the vitamins they need to stay healthy.

Most likely, a person’s health will improve with a diet that is high in plant-based foods and low in added animal fats, processed foods, and sugar and salt.


Newman, Tim. “Nutrition: Nutrients and the Role of the Dietitian and Nutritionist.” Medical News Today. MediLexicon International. Accessed October 10, 2022. https://www.medicalnewstoday.com/articles/160774.

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