Topic summary contributed by volunteer(s): Dan

Insulin-like growth factor-1 (IGF-1) is a natural human growth hormone that assists the body’s transition from childhood into healthy adulthood. Once the body completes this natural growth period, high levels of IGF-1 are no longer necessary and over-production may become detrimental to health. Uncontrolled cellular growth and proliferation (which may be the result of too much IGF-1) may lead to cancer growth. Having low levels of IGF-1 as an adult may improve the chances of acancer-free life.

Animal protein consumption appears toincrease IGF-1 levels. Plant protein consumption in general may not have the same effect.

Dairy products and excess soy may also result in similar IGF-1 results. A plant-based diet and a regular exercise routine may reduce our IGF-1 levels in less than two weeks. Lowered IGF-1 levels don’t appear to have any effect on muscular strength.

The information on this page has been compiled from the research presented in the videos listed. Sources for each video can be found by going to the video’s page and clicking on the Sources Cited tab.

Image Credit: Pixabay. This image has been modified.

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