Another turncoat. I was veg for nearly 20 yrs and macro for about 3 of those years. We still eat a very varied, mostly plant-based diet. I try to serve meat no more than twice a week, including lunches. My reasons for eating some organically grown, humanely raised flesh are varied. I don't think we *need* flesh to be healthy, but i absolutely believe humans can thrive on varied diets, and what food humans consume depends on the climate one lives in-- and general health, or lack thereof, matters very much when we make food choices. Food can heal us, and food can harm us, depending on what our needs are. All you can do is experiment a bit and see what your body needs.
I feel healthy, strong, energetic, and optimistic (despite the world as it is) eating as i presently do, which is still mostly plant -based. I started eating meat during the lactation period of one of my children. I don't have anything more to offer than lots of recipes.