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Fat Mass

Meaning

Fat Mass, or total adipose tissue mass, is the entire quantity of lipid-containing cells stored within the body, which includes both essential structural fat and energy storage fat. This measure is a crucial component of overall body composition and functions critically as a major endocrine organ, actively secreting hormones and cytokines that profoundly influence systemic metabolism and chronic inflammation. Excessive fat mass, particularly the metabolically active visceral adiposity, is a significant, modifiable risk factor for numerous metabolic and cardiovascular dysfunctions.