Instruct: Classify a given review as either positive or negative.
Query: ANIMAL PAK WORKS

I've been taking AP for a while now. I got into a motorcycle accident so I stopped working out and therefore stopped te AP as well. Now I'm back to working out (P90X) and let me tell you that the first week my energy level was really worn off the second week I was under AP and the difference is huge, I mean I can really take the best out of the work out. I totally recommend it. If you are training for Triathlon or something similar, you can take two packs no problem, your body will burn it.