A study by the British Journal of Nutrition revealed that people who eat moderate amounts of grass fed beef receive a healthier level of essential fats compared to people eating the grain fed beef. And the benefits go beyond good fats: several studies show that fully grass fed animals also contain considerably more vitamins and minerals such as beta-carotene and vitamin E. 英国营养学报研究显示,吃草饲牛人的人比吃谷饲牛肉的人,得到更健康的脂肪。而草饲牛肉的优点远大于谷饲,这包括有更多的维生素和矿物质以及贝塔胡萝卜素和维生素E