Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This diet is impossible to follow!

I tried to follow this diet, but it was a losing battle. Youcan't have anything to eat but a few kinds of veggies (no broccoli, nopeppers, no carrots, no peas, etc.) and protein until your reward meal. I was miserable all day just waiting for that reward meal that ends up making you feel bloated and exhausted.