How Much Soy Is Too Much?
To maintain the low IGF-1 levels associated with a plant-based diet, one should probably eat no more than 3-5 servings of soy foods a day.
This is the fourth in a string of videos on the role plant and animal proteins play in determining levels of the cancer-promoting growth hormone IGF-1. See Protein Intake and IGF-1 Production, Higher Quality May Mean Higher Risk, Animalistic Plant Proteins, and Too Much Soy May Neutralize Plant-Based Benefits. For the role soy plays in extending breast cancer survival, see my latest video on the subject Breast Cancer Survival and Soy. I've got two dozen other videos on soy (and hundreds of others on more than a thousand topics).
For some context, please check out my associated blog posts: How Much Soy Is Too Much? and Why Less Breast Cancer in Asia?