Just a few days of walking and eating healthy plant foods can lower the level of the cancer-promoting growth hormone IGF-1 enough to reverse cancer cell growth in a Petri dish. This is detailed in my Care2 posts Cancer-Proofing Your Body, Treating an Enlarged Prostate With Diet, and How do Plant-Based Diets Fight Cancer?
We know decreasing animal product consumption decreases our IGF-1 levels, but how low do we have to go? How plant-based does our diet need to get? In today’s NutritionFacts.org video pick above, the IGF-1 levels are compared between those eating conventional, vegetarian, and vegan diets.
Boosting cancer defenses within just days of eating healthy is a remarkable finding. For those interested in the whole story, I started out introducing Nathan Pritikin and the elegant series of experiments that became part of his legacy. They were able to demonstrate the mechanism by which a plant-based diet and exercise could suppress the growth of breast and prostate cancer cells and protect against prostate enlargement (more on prostate problems in Some Prostates are Larger Than Others and Prostate Versus Plants). I also asked and answered Is It the Diet, the Exercise, or Both? And finally, for those interested in whether lower levels of growth hormones in vegans might interfere with the accumulation of muscle mass, see my 3-min. video Plant-Based Bodybuilding.
Michael Greger, M.D.
Image credit: edwick / Flickr