The beef of grain-fed cattle tends to taste sweeter than grass-fed beef, due to the abundance of corn in the grain-fed diet.

For cattle fattened in fields instead of feedlots, the grass may be greener, but the carbon emissions are not. A study out Monday in the Proceedings of the National Academy of Sciences finds that ...

The finding calls into question the frequent promotion of grass-fed beef as a more environmentally friendly option. Still, other scientists say grass-fed beef wins out on other factors like animal ...