Yes, it's usually not a problem, if it's all you can get it's still much better than no meat or cooked foods.
However, I suggest avoiding ground meat (you never know what's in there) and beware of expensive cuts that might have meat glue. Also keep in mind when something is on sale, it's probably frozen and thawed.
Conventional chicken is pretty gross, and might give you issues, especially if you're new to this lifestyle. The first time I tried it, back when I was a cooked food eater, I had salmonella or whatever it was, that lasted for 2 months.