It's a low sample size, and observastional, but it points in that direction. The effect is probably IGF-1 related as IGF-1 indirectly activates HTRT and telome

It's a low sample size, and observastional, but it points in that direction. The effect is probably IGF-1 related as IGF-1 indirectly activates HTRT and telomere lengthening (http://www.sciencedirect.com/science/article/pii/S004763740900147X http://www.sciencedirect.com/science/article/pii/S0047637409...). IGF-1 is also what the non-meat eating lobby use to connect red meat eating with cancer. IGF causes cells to grow. Anything that causes cell growth, even if it generally manifests as bigger muscles, stronger bones or longevity also helps cancer cells grow and gets tagged as bad by association, even though preventing cancer is more about having a strong immune system, early detection and avoiding mutagenic chemical pollutants. There is a huge pro-vegetarian bias is nutrition studies. That's because there are a lot of people who want the world to switch to a vegetarian diet because it is more ecologically sustainable or they are intensely devoted to animal welfare and not necessarily because it is the most healthy.