Humans have been leaving on a plan based diet for thousands of years with variable amounts of meat consumption based on various factors like availability.
If we live in a cold climate where plants don't grow for most of the year, it is obvious that our diet will be primarily made of meat.
But when we live in a warm climate that allows for an abundant variety of plants to grow we eat more plants than meat.
Humans had no evolutionary pressure to develop razor sharp teeth or claws thanks to our ability to eat a wide variety of plants. Our tool crafting abilities and ability to strategize allowed us to improve our plant production capabilities and to supplement our alimentation with meat.
The takeaway is that we are perfectly adapted to live on an plan base diet. So eat plenty of legumes, vegetables, fruits, nuts, seeds, grains, mushrooms, herbs, and spices. Supplement with dairy products, meats, and fishes as you like.