Nutritionists weigh in on new weight loss aid, Alli

Christina Cesario works out five times a week. She says she'd try the new FDA approved diet pill, Alli. "I would definitely be interested in trying it and see if it helps me loose a few more pounds and how it makes me feel,” said Cesario

The makers of Alli claim it can help its users lose 50-percent more weight than dieting alone. An example they use is, if you loose 10 lbs on your own, you'll loose 15 with Alli.

Nutritionist Kelly Waters says, “I'm afraid that they’re gonna say well this pill is great. I'm just going to take this pill and be okay, when really that's not how it is."

Alli creators say the pill works on the digestive system. Officials say the Alli prevents enzymes in the intestines from digesting about a quarter of the fat a person eats. But if you don't stick to the recommended diet plan Alli officials say there could be "treatment effects." “If people take this pill and they continue to eat fried foods, trans fats, that's when they're definitely going to have the gastrointestinal distress. It will not agree with their body," said Waters.

For some that's enough to stay away from the pill.

Eric Patrick says he’ll never use diet pills. "I probably wouldn't use it. No I think that I would just go ahead with the vegetables and fiber,” said Patrick.

Nutritionists say just because the pill is FDA approved, doesn't mean it will perform miracles.

Nutritionists say some of the fat Alli passes out of the body is fat the body needs. Like Vitamin A, D, E and K.

Alli is only for people age 18 and over.

The makers of Alli say most weight loss occurs in the first six months of use.

A starting package costs $60 for 90 capsules at most stores. The refill packages are $70 for 120 capsules.