Alli, the first over-the-counter diet drug to win FDA approval, is off to a roaring start with the nation's dieters, but it hasn't been without controversy.

Many are questioning whether the side effects outweigh the benefits. The GlaxoSmithKline drug prevents the body from breaking down and absorbing fat, but it can also cause gas with oily discharge as well as frequent or loose stools.

MyAlli.com suggests it's probably a "smart idea" to wear dark pants and bring a change of clothes to work if you use the drug. Ewwww!

At least one gym is using the side effects to try to up its membership. I heard a New York Sports Club ad on the radio today questioning the cost and the benefits of Alli. It suggested you join the gym instead.

And so do I. As a former user of Xenical, the prescription form of Alli, I must say that an hour in the gym is much better than worrying about controlling your bodily functions.

But if you are trying it, let me know how it's working for you.

-- Amanda Barrett, amNY.com