I buy cherry flavored prunes. They don't taste too bad at all, and they work every single time! I have to eat about four for them to kick in, and sometimes they still take a couple hours, but they always work! One thing I don't like about them is that they give me some gas afterwards for a few hours that makes me crampy! Apples work for me, too - just not every single time. Apples don't give me any side effects, which is great! Good luck!