Frontier Pets beef protein and offal are sourced from Australian farmers practising sustainable agriculture. All of our beef is free-range and grass-fed for the whole of life. This means that the animals spend their whole lives on pasture and, unlike the majority of grass-fed beef, do not end their days in a feedlot. Livestock that spends their whole life grazing is free of the growth promotants and antibiotics used by feedlot farmers. This ensures that Frontier Pets' free-range, grass-fed beef dog, puppy, and cat food is free from artificial hormones, giving our pets the most pure form of protein available.