If you listen to the US Cattlemen’s Association, they will tell you there is no difference between factory farmed, grain-fed cows and grass-fed cows. They will point to this study and that study to prove their point. I think most people inherently know that isn’t true.
I recently came across a study that summarizes all studies done on grass-fed vs. grain-fed beef and they came to a very different conclusion. Their conclusion is that grass-fed beef is healthier for us in many ways. Watch the video below for the details.