One of my gymnasts comes from a family where they eat mostly hunted meat. They eat little to no fish or seafood but do buy chicken and eggs (something in the works, I hear). Lots of deer, buffalo, pheasant, quail, turkey, etc.
The kid is also extremely strong. I've often wondered if it helped during his training but he has never really trained more than 10 hours a week and is a low level gymnast moving on to mid level gymnastics (competitive). His little brother who does not train is still stronger than most of the kids in his class. Polar opposite though.