Hibiscus tea will give you a ravenous appetite! I found this out by accident. I started drinking it because its very high in vitamin C and I cant take supplemental C. I had to stop drinking it because I was eating all day long and started gaining weight which I dont need. You can buy the dry petals at most grocery stores or at a health food store. The petals are blood red and you steep them as you would do any tea. Very sour but you can add stevia or whatever healthy sweetener you prefer. Hope this helps.