Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Did less than nothing for me.

I took this on a low fat diet for one month at the maximum dosage and got nothing but sleepless nights for my trouble. I ended up having to shell out for 2 bottles to give this a decent try at the full dosage and even dropping down to the minumum dose didn't help with the sleeplessness. I wasn't snacking and was eating small portions on my strict diet and managed to GAIN weight. I think I can safely say that this product is absolute garbage.