Our Health Library information does not replace the advice of a doctor. Please be advised that this information is made available to assist our patients to learn more about their health. Our providers may not see and/or treat all topics found herein.
Major Nutrients in Food
Overview
Nutrients are substances in food that provide energy or that help your body work as it should. Nutrients are used to build and repair body tissues.
The major nutrients are protein, carbohydrate, and fat. They provide the body with energy. This energy keeps your heart beating, your brain active, and your muscles working. The energy is measured in calories.
- Protein has 4 calories per gram.
- Carbohydrate has 4 calories per gram.
- Fat has 9 calories per gram.
Vitamins, minerals, and water are nutrients too. To work well, your body also needs these nutrients.
Current as of: September 20, 2023
Author: Ignite Healthwise, LLC Staff
Clinical Review Board
All Healthwise education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.
This information does not replace the advice of a doctor. Ignite Healthwise, LLC disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use and Privacy Policy. Learn how we develop our content.
To learn more about Ignite Healthwise, LLC, visit webmdignite.com.
© 2024 Ignite Healthwise, LLC. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Ignite Healthwise, LLC.
