Insulin Growth Factor-1 (IGF-1)

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Insulin growth factor-1 (IGF-1) are part of a complex system that cells use to communicate with their environment.

Once called somatomedin C, IGF-1 is a polypeptide protein hormone similar in molecular structure to insulin. It plays an important role in childhood growth and continues to have anabolic effects in adults.

Human population studies have showed that high levels of IGF-I are associated with an increased risk of several cancers, especially prostate cancer. Researchers believe that IGFs stimulate tumor cell proliferation, survival and metastasis (spread of cancer to other locations in the body).

IGF-1 is present in milk, especially when the cow has been treated with bovine growth hormone.

Insulin Growth Factor-1 (IGF-1) - Found in:

Milk,
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References 
Chan JM, Stampfer MJ, Giovanucci E, et al. Plasma insulin-like growth factor 1 and prostate cancer risk: a prospective study. Science. 1998; 279:563-566.Giovannucci E, Pollak MN, Platz EA, et al. A prospective study of plasma insulin-like growth factor-1 and binding protein-3 and risk of colorectal neoplasia in women. Cancer Epidemiol Biomarkers Prev. 2000; 9:345-349. Hankinson SE, Willett WC, Colditz GA, et al. Circulating concentrations of insulin-like growth factor-1 and risk of breast cancer. Lancet. 1998; 351:1393-1396.Le Roith D. Insulin-like growth factors. N Engl J Med. 1997; 336:633-640.

About The Author

Kelley Herring, founder of Healing Gourmet, is a natural nutrition enthusiast with a background in biochemistry. Her passion is educating on how foods promote health and protect against disease and creating simple and delicious recipes for vibrant health and enjoyment.

Kelley Herring – who has written posts on Healing Gourmet.


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