Cows are a grazing animal. Everything from their mouth to their 4 stomachs to their colon has evolved to digest grass. When cows are fed corn and soybeans they get sick. To digest grains and beans the cows digestive tract becomes more acidic which causes bloating, ulcers and infections to occur. To deal with the infections cows are fed antibiotics which end up in the milk and meat produced by industrially raised cattle. This is just one of the many problems with industrial farming. Corporations do not care about the health and wellbeing of the animals they imprison or and people that eat those animals. If you choose to eat cows and their milk I suggest you make sure these foods are coming from grass fed cows raised on local farms.