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Browse Wellness Word Definitions  Wellness Words Detail Page     Word:    IGF-1 Short Definition:   Insulin-Like Growth Factor 1 Definition: Insulin-Like Growth Factor 1 is a crucial blood protein produced in the liver in response to stimulation by human growth hormone (HGH). IGF-1 is a metabolite of HGH and provides the best indicator of HGH levels because HGH cannot be measured directly because it is detectible in the blood for only a few minutes. Although optimal levels HGH are believed to promote youthfulness and good health, high levels of IGF-1 are considered pro-inflammatory and there has been a past correlation between IGF-1 and cancer risk.

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