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Cellular Fat Burning

Meaning

Cellular Fat Burning, scientifically termed beta-oxidation, is the fundamental metabolic process occurring within the mitochondria of cells where stored triglycerides are broken down into fatty acids and then further metabolized to produce adenosine triphosphate (ATP). This process is the body’s mechanism for utilizing lipid stores as a primary energy source, particularly during periods of fasting or sustained physical activity. Effective cellular fat burning is a hallmark of metabolic flexibility and is closely regulated by key hormones like insulin, glucagon, and thyroid hormones. Impairment of this pathway can contribute to intracellular lipid accumulation and insulin resistance.