Most science studies on nutrition turn an actively blind-eye to plant-based nutrition. I believe one reason for this is simply that the scientists and researchers conducting the studies are members of the meat-based diet society. It's just an unquestioned given, however, "discoveries" of the benefits of plant-based diets are trickling in. Here is a link to another "discovery" (and they even tell you, "You're not going to like it.") : https://www.sciencealert.com/third-of-early-deaths-could-be-prevented-with-diet-change-vegetarian

Both of those web sites provided food for thought. 

Thanks, Sean