Alli Review – Is Alli Safe Because It’s FDA Approved?

What is Alli?

Alli is an over the counter form of the prescription fat blocker Xenical. It used a smaller dosage of the ingredient known as Orlistat, and they sell in drugstores across America. They claim that with serious behavior modification and dedication, you can lose up to 50% more weight with Alli than diet and exercise alone.  They use fat blocking mechanisms, asking you to severely limit your fat intake of both good and bad fats, and some have reported that fat soluble vitamins tend to asborb poorly when using this method.  However, they claim that Alli is the only safe option and the only effective option on the over the counter market, actually using half of the amounts used in clinical studies of Orlistat as well as the prescription Xenical, which obviously uses Orlistat in general.

History of Alli

Alli was approved by the FDA panel with one vote separating them on January 23, 2006. So the margin was narrow. They approved their advertising, and it was considered to be a safe alternative. Since then, it has been promoted by various celebrities and individuals, again as a product that will help you when and if you are ready.  But they have kept their advertising very tame, even claiming that it’s not for everybody, which is not typical of a diet pill for obvious reasons.  They have actually been forced to change their advertising due to breaches of code we believe with the FDA and their requirements.  But there have been numerous customer reports about Alli and its acutal safety in terms of your social life and other factors, because of course many believe the FDA related claims and ultimately choose Alli over common sense.


Alli does lower cholesterol and risk of type 2 diabetes with extended use. However, it does not really promote much weight loss. The average participant in studies used the prescription dose, not the Alli dose, and about 70% lost 5-10% of their body mass, not necessarily in fat over the space of a year, while the rest did not lose any weight at all. Those that did lose weight gained it back after they went off Orlistat. Unfortunately, you could lose more than 5 to 10% of your body weight with diet and exercise alone.

Side Effects

While more severe side effects have been reported with Xenical, very particular side effects have been reported with Alli. They include anal leakage, extreme diarrhea, sudden defecation, the need for adult diapers and dark pants, gas, bloating, vitamin deficiencies, etc. With the exception of vitamin deficiencies, they say that all the side effects keep you honest and are completely avoidable. However, you would have to go on a no fat diet.


Alli is not really a powerful weight loss product, which is why all the people promoting it are still as overweight as they ever were. Even with higher doses than used by Alli, you see only small results that you could beat with diet and exercise alone. With all the stipulations and nasty side effects, it is certainly not safe or desirable.

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