Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Agree with his theory on exercise, but not diet

Ok, I think he's on to something as far as problems with cardio. However, 1200 calories a day is bordering on starvation, especially when you add muscle-building into the equation. I myself dropped from 195lbs to 165lbs doing 3 days of weight training and 3 days of cardio per week while consuming approximately 1800 calories a day. At 165 pounds, I hit a plateau. I lost another 40 through a combination of interval and weight training while consuming around 2000 calories a day, more on Saturdays when I had a 3 hour workout. I once tried to stick to 1600 calories a day (this was without regular exercise) and after a few days I began waking up in the middle of the night, ravenous. So to set one calorie goal and assume it's right for all women is wrong and potentially dangerous.