Hi,
Your concern for your body and potential side effects is absolutely understandable - most of the health problems today are associated with obesity. And the majority of products and diets today do have unwelcome side effects. Always use products which are recognized by an authorized company. One which I can suggest you try is the Access Bars from Melaleuca. They have been scientifically proven, and are patented in numerous countries - this should give you peace of mind that they have been well tested. You can find out more at my signature given below:
www.patented-weight-loss.com/