Protein Intake & IGF-1 Production
Channel: NutritionFacts.org
Date: 2012-10-01

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DESCRIPTION: Animal protein consumption triggers the release of the cancer-promoting growth hormone IGF-1. For background on IGF-1 see IGF-1 as One-Stop Cancer Shop (http://nutritionfacts.org/video/igf-1-as-one-stop-cancer-shop/) and Cancer-Proofing Mutation (http://nutritionfacts.org/video/cancer-proofing-mutation/). In The Answer to the Pritikin Puzzle (http://nutritionfacts.org/video/the-answer-to-the-pritikin-puzzle/) we established that the reason the blood of those eating plant-based diets appeared so much better at fighting cancer cell growth, see Ex Vivo Cancer Proliferation Bioassay (http://nutritionfacts.org/video/developing-an-ex-vivo-cancer-proliferation-bioassay/), is likely due to the drop in IGF-1 levels, especially those following vegan diets as per Friday's video-of-the-day How Plant-Based to Lower IGF-1 (http://nutritionfacts.org/video/how-plant-based-to-lower-igf-1/).  Now it appears we know why—their avoidance of animal protein. Let's go one level deeper and ask why animal protein preferentially triggers IGF-1 release. Stay tuned for tomorrow's video-of-the-day Higher Quality May Mean Higher Risk (http://nutritionfacts.org/video/higher-quality-may-mean-higher-risk/).

Have a question for Dr. Greger about this video? Leave it in the comment section at http://nutritionfacts.org/video/protein-intake-and-igf-1-production/ and he'll try to answer it!

Image Credit: ttrentham, danmachold, and Tinker*Tailor loves Lalka via Flickr. Images have been modified.

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