You may have seen ads for natural dietary supplements in the back pages of magazines or on the internet. Can they work and are they safe?

As a treatment for severe obesity, the popularity of weight loss surgery is growing. However, it isn't for everyone - and like any surgical procedure, has risks.

The most common weight loss procedures are gastric banding and gastric bypass operations. Learn more.

Read more about the different kinds of gastric banding surgeries.

Procedures like gastric banding aren't the end of a weight loss journey. Many old habits will have to change too.

Many people who have lost more than six stone are overjoyed at their success - but they may be dismayed that their body does not have better shape and tone. Learn about cosmetic surgery after weight loss.

Obesity is not just a cosmetic problem. It is a health hazard. Learn more about your risks.

Depending on the type of weight loss surgery, patients often lose 50 to 70% of their extra weight after surgery. Yet weight loss surgery is major surgery and does come with some risks.

How does weight loss surgery work, and could it help you? Here are some answers to frequently asked questions about weight loss surgery.