Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worthless

I started taking this product after seeing Dr. Oz praise its healthful benefits on his TV show. So I ordered it, took the precise dosage Dr. Oz suggested - and after one month, the only change I noticed in my body was that this 7-Keto stuff negatively affected my sleep. NO leaning out, NO feeling better (and I even keep a very healthy diet, and work out regularly!). Maybe this supplement will work for you, but I think it's pretty worthless, and I will think twice before listening to Dr. Oz again.