Hormonal
Activation of beta-adrenergic receptors (betaARs) by catecholamines triggers lipolysis and energy expenditure in adipocytes through complex signaling networks involving PKA, ERK, and p38 MAPK, with beta3AR playing a distinct role in recruiting brown adipocyte-like features in white fat depots.
Your body naturally burns stored fat using adrenaline and noradrenaline, which activate specific receptors on fat cells. This process involves complex internal signaling. While drugs targeting these receptors have failed in humans, you can naturally stimulate these pathways through activities that increase catecholamines, such as exercise or cold exposure, which may help recruit brown-like fat features in white fat depots.
The catecholamines adrenaline and noradrenaline are well known as the physiological trigger for hydrolyzing stored fat in adipose tissue so that it can be 'burned' as fuel in other organs... The beta-Adrenoceptor activation promotes lipolysis of stored triglyceride in both white and brown adipocytes.
Why this rating
The paper is a review citing numerous primary studies in rodent models and some human adipocyte data, establishing a strong mechanistic consensus.
Source
β-adrenoceptor signaling networks in adipocytes for recruiting stored fat and energy expenditure
Sheila Collins · Frontiers in Endocrinology · 2011
DOI 10.3389/fendo.2011.00102
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