I really need an appetite suppressant

I think everyone needs an appetite suppressant now and again. My downfall is chocolate. I just love chocolate. Sometimes I just crave it especially chocolate ice cream. I am really picky about what I am willing to take so I want a natural appetite suppressant that doesn't have anything in it that will hurt you. Does one exist that really works? Well that's the million dollar question isn't it. If anyone knows of one I am all ears.