This study doesn't look at the long term chain reaction of high protein diet which leads to much higher cancer risk, slowing or shutting down our autophagy process and rapid aging (balding). It also doesn't see the benefit of intermittent fasting. I just wrote an article about this topic. https://steemit.com/vegan/@watermelonprince/how-to-really-eat-healthy-simply-remember-the-5-colors-of-phytonutrients