Slimming pills and diet foods
- Which? investigates whether slimming pills really work
- The truth behind the claims of weight-loss products
- Find out if it’s worth paying extra for 'diet' foods
- Learn about drugs your GP can prescribe to treat obesity
What's in this guide
Do slimming pills and diet foods work?
We reveal the truth behind the claims made by weight-loss products
Slimming pills
Our experts assess the claims and scientific evidence behind nine OTC slimming pills
Diet foods
Are ‘diet’ foods really better for you, or are they a waste of money?
Our research
How we came to these conclusions about slimming pills and diet foods