Instruct: Classify Amazon reviews into positive or negative sentiment
Query: this diet stinks!

I followed Dr Atkins advice for two months. Nothing but meat, cheese, eggs etc. This may sound like some kind of nirvana until you realise you can't eat buns with your burger (or fries), no taco shell with your taco, no base for your pizza, no bread for your sandwich...I feel I was missing out more than ever on this diet. But worst of all my bad "ldl" cholestrol went up, i suffered from headaches and dizziness most days, my breath stank and i was always constipated.Oh yes i lost some weight. And now i know why most people lose weight- you can only eat so much protein. By cutting off an entire food catergory you will, of course, lose weight- that's obvious.But i can assure you there are much healthier and in the long term more effective ways of losing weight. This diet really does stink!!!