An adipocyte, commonly known as a fat cell, is the specialized cell type that makes up adipose tissue. Its primary function is the storage of energy in the form of triglycerides, which can be released as free fatty acids when the body requires fuel. However, adipocytes are also active endocrine cells that secrete a variety of signaling molecules called adipokines, such as leptin, adiponectin, and various pro-inflammatory cytokines.
In a state of metabolic dysfunction or obesity, adipocytes can become 'sick' or dysfunctional, either by growing too large (hypertrophy) or increasing too much in number (hyperplasia). Dysfunctional adipocytes contribute to systemic inflammation and insulin resistance. Weight loss protocols aim to reduce the size of these cells and restore their healthy endocrine function, which is essential for achieving long-term metabolic stability and reducing the risk of chronic disease.
The definitive guide by Russell Clark, FNP-C, APRN