Metabolism refers to all the physical and chemical processes in the body that convert or use energy, such as:
- Circulating blood
- Controlling body temperature
- Contracting muscles
- Digesting food and nutrients
- Eliminating waste through urine and feces
- Functioning of the brain and nerves
Shulman GI, Petersen KF. Metabolism. In: Boron WF, Boulpaep EL, eds. Medical Physiology. 3rd ed. Philadelphia, PA: Elsevier; 2017:chap 58.
Review Date: 7/12/2018
Reviewed By: Laura J. Martin, MD, MPH, ABIM Board Certified in Internal Medicine and Hospice and Palliative Medicine, Atlanta, GA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.