Although chickens are not injected with hormones during their growth, they are given antibiotics and vaccines to prevent disease. Therefore, there may be some antibiotic residues in some chicken meat, but these hormones are generally metabolized within 3 days.
When buying chicken meat, choose from reputable places to ensure safety.
As for nutritional issues, there is actually not much difference between free-range chickens and mass-produced broiler chickens, and any slight differences can be completely negligible. Both broiler chickens and home-raised free-range chickens can be consumed.
