Look for a "Certified Organic" labelA farm that is "certified organic" is audited annually and must follow the federal organic standards. A farm can simply call itself "organic" and not be certified -- but in those cases, you have to trust that the farmer is actually following organic practices. The federal standards require that animals eat only organic feed (no GMOs or synthetic pesticides or fertilizers) and they cannot be given antibiotics or synthetic hormones. Whether they eat grass or grain is not specified.How this benefits animals: All certified organic animals must have access to the outdoors, though for how long and how often is not specified. Cows, sheep, and goats must have pasture aduring the grazing season. Pigs and poultry aren't required to have pasture, only access to the outdoors. Because certified organic farmers are  banned from treating their animals with certain conventional medicines, they must take more care to prevent animal illness and disease before it happens.