Besides some well known advantages of going to a plant based diet (losing weight, reducing heart disease, etc.) there are some less well-known ones.

"Studies have shown that people who adopt plant-based diets can dramatically lower their level of C-reactive protein (CRP), an indicator of inflammation in the body."

"....a plant-based diet, along with other lifestyle changes, can lengthen our telomeres—the caps at the end of our chromosomes that help keep our DNA stable. This might mean that our cells and tissues age more slowly since shortened telomeres are associated with aging and earlier death."