Written By Michael Greger M.D. FACLM •
Last updated: • 1 min read
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 last three blog postsCancer-Proofing Your Body,Treating an Enlarged Prostate With Diet, andHow 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 my 2-min. videoHow Plant-Based to Lower IGF-1? the IGF-1 levels are compared between men and women eating conventional, vegetarian, and vegan diets.
Vegan men tended to have significantly higher testosterone levels than both vegetarians and meateaters (see graph here), which can be a risk factor for prostate cancer, the reason plant-based diets appear to reverse the progression of prostate cancer may be due to how low their IGF-1 drops (see Cancer Reversal Through Diet?).
Boosting cancer defenses within just days of eating healthy is a remarkable finding. For those interested in the whole story, I started outintroducing Nathan Pritikinand theelegant series of experimentsthat became part of his legacy.
Researchers were able todemonstrate the mechanismby which a plant-based diet and exercise could suppress the growth of breast and prostate cancer cells andprotect against prostate enlargement(more on prostate problems inSome Prostates are Larger Than OthersandProstate Versus Plants).
I also asked and answeredIs It the Diet, the Exercise, or Both?
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. videoPlant-Based Bodybuilding.
–Michael Greger, M.D.
PS: If you haven’t yet, you can subscribe to my videos for free byclicking hereand watch my full 2012 – 2015 presentationsUprooting the Leading Causes of Death, More than an Apple a Day, From Table to Able, and Food as Medicine.
