I realize not everyone is a vegetarian, but it seems like these days, most of us are more careful about the foods we buy and serve to our friends and family. I came across this video and information regarding Grass Fed Beef. So much of the Beef we eat has been fed Corn, which is NOT natural for cattle. Have you ever seen pictures of heards of Cattle grazing in corn fields? Yeah, I didn't think so.
Grass Fed Cattle are naturally more healthy, and the meat is leaner. Look for it, and preferably, make sure it hasn't been fed anitbiotics or growth hormones either.
If you want to learn MORE about the dangers of Corn in the US - (we are hearing more and more about how corn and its sugars are not good for humans, but it's not healthy for cattle either), please read "The Omnivore's Dilemma" by Michael Pollan.
For now, I hope this information is useful!