Britannica AI Icon

Quick Summary

Lipolysis is the chemical breakdown of fats, specifically the hydrolysis of triglycerides into fatty acids and glycerol. This process is facilitated by enzymes called lipases, which are found in various bodily fluids and tissues, including blood, gastric juices, and adipose tissues.12

Lipolysis is crucial for mobilizing stored energy. When the body requires energy, hormones like glucagon and adrenaline trigger the activation of lipases in adipose cells. These enzymes break down stored triglycerides into free fatty acids, which are then released into the bloodstream to be used by muscles and other tissues for energy production. This stored fat is a significant energy source, yielding more energy per gram than carbohydrates.3

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Ask Britannica AI about this topic

Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.