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IGF-1

Meaning

IGF-1, or Insulin-like Growth Factor 1, is a potent peptide hormone structurally homologous to insulin, serving as the primary mediator of the anabolic and growth-promoting effects of Growth Hormone (GH). Primarily synthesized and secreted by the liver in response to GH stimulation, IGF-1 acts systemically to promote cellular proliferation, inhibit apoptosis, and stimulate tissue growth, particularly in muscle, bone, and cartilage. Maintaining optimal IGF-1 levels is crucial for metabolic health and tissue regeneration.