Leptin supplements' side effects forced me to quit taking them. Some people only suffer one side effect, but I experienced three.
Since leptin is a stimulant, it speeds up everything in your body. I was sweating and urinating more, and I became dehydrated. My blood pressure and pulse went higher than normal, too.
I also experienced nausea. That's when I decided that leptin supplements were not for me.
It would be nice to lose weight, but I am afraid that leptin is causing more harm than good. Even if it did make me lose the pounds, I would be afraid to keep taking it.