This is so interesting. I would love to know what anIGF-1 measurement is for someone on a low-fat, plant-based diet. Too bad that wasn't explored.

There already has been a lot of research done on IGf-1 and plant-based diet. Dr. Michael Greger offers a number of presentations on it on his website: http://nutritionfacts.org/index.php?s=growth+hormone As we might expect, the low-fat plant based diet does in fact lower IGF-1 dramatically, without fasting.