Tuesday, June 19, 2007

Alli- what's the story?

So guess what. There's a new over-the-counter weight loss pill just approved by the FDA.

It's called Alli, it's made by GlaxoSmithKline, and early reports are that it's flying off the shelves.

So what's the deal?

Alli is actually Orlistat, which is actually Xenical. Xenical has been around for a while, didn't work very well, and has now been given a face lift; they took it off prescription-only status and repackaged it as Alli.

This is not the first time the clever marketers at Big Pharma have done this. Not too long ago, Eli Lilly took Prozac, dressed it up in nice pink and purple colors and rechristened it "Sarafem" for PMS.

But I digress.

So what do we know about Xenical (oh, excuse, me, Alli)..

Well let's start with this: it didn't work very well in the first place when it was known as Xenical. I'm not sure why changing the name and making the dosage smaller would fix the problem, but hey, what do I know?

Alli is a member of a category of weight loss drugs that might be called "digestive inhibitors". It blocks some of the fat that you eat from being digested and assimilated, and it does this by blocking the digestive enzyme lipase- which breaks down fat. The result? As much as 30 percent of the fat you eat doesn't go to your hips. Questions, anyone?

How 'bout this one: "What does it do to the fat that's already on your hips?"

Answer: Zip-i-dee-doo-dah.

People lose weight on Xenical- 'scuse me, Alli- because it essentially lowers caloric intake automatically. If you, for example, were eating a nice hefty 2500 calories a day and 30 percent of them happened to come from fat, you would normally be taking in 750 fat calories. By taking Xenical with a fatty meal, about one third of those fat calories aren't absorbed, so the 750 calories becomes, theoretically, 500 calories. You've "saved" 250 calories while eating the same meal (note the operative word theoretically). Stick to that plan for a week and you've "saved" 250 times 7 calories or a grand total of 1750 calories or... let's see... ummm... one half pound?

Yup.

And that's theoretically.

Nowlet's go to the videotape.

The first big study to put Xenical on the map was a two-year European study which showed that patients on Xenical lost between 2 and 3 percent more weight than those on a placebo. A second two year European trial put obese patients on a reduced-calorie diet and gave them 120 mg of Xenical 3 times a day. At the end of the year they had lost about 9 pounds more than the placebo group. Read that carefully. Nine pounds a year which translates to 3/4 pound a month.
A similar study in the US produced 1/2 pound per month for Xenical users.

So is Alli the answer? Hardly. Unless maybe if you're a stockholder in Glaxo.

Can it help if you're already doing all the right stuff, like eating well, eating clean, exercising, and taking care of yourself in a profoundly nurturing way? Maybe so. Maybe it can add a little tiny extra that could be meaningful to some people.

But unless you use it in conjunction with all that other good stuff- that so many people seem to want to bypass- it's just not going to do diddly squat.

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