Weight loss pills – what do they really do?

There are a number of weight loss pills available over-the-counter in the UK and the US. Here are the headlines on three of the most common options, telling you how they are supposed to work, to help you think about whether or not you want to take them! 1. Alli is the over-the-counter version of the GlaxoSmithKline drug, Xencial, which is available on prescription. Alli works on the basis that fat is not digested by the body until it reaches the colon. So Alli/Xenical tries to ensure that any fat rushes through the colon and into the toilet, before it can be digested at all. You can probably work out the key downside already - some people reportedly don't even make it to the toilet before the tablet works! The product information advises wearing dark trousers and carrying a spare change of clothes. Nice!

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