Growing up in an Indian family meant mostly vegetarian fare growing up, but I felt better after I started incorporating more
meat into my diet, and greatly reducing or eliminating most grain products.
Just goes to show that there's no one-size-fits-all in dietary needs.
1) eat real food - more vegetables, moderate meat, moderate fruits, less grains, less sugar, less vegetable oils.
2) exercise - moderate intensity cardio, sprinting, heavy lifting, dedicated stretching and mobility.
3) live - relax, de-stress, meditate.
Disclaimer: I'm not professionally qualified to make any formal recommendations. I've just done my homework and I'm my own guinea pig. All of my data, unless otherwise cited, comes from a sample size of n=1 (me).