The phrase "grass pastures" refers to large areas of land covered with grass, where animals like cows or horses can graze and eat the grass as their food. Full definition
These cows are never allowed to graze on natural grass pastures. (grassfedprotein.net)
All Natural Whey Protein Isolate from grass pasture fed cows NOT treated with hormones or antibiotics. (energyfirst.com)
EnergyFirst whey protein comes from grass pasture fed cows that are not treated with rBGH, rBST, or any other hormones or antibiotics. (energyfirst.com)