Suger free gum
 

Gum

Don’t worry, taking up this habit won’t leave you with Alex Ferguson’s physique – if you opt for sugar-free gum. University of Rhode Island researchers have found that chewing by itself reduces the amount you eat and speeds up your metabolism.

Need another reason? A study published in the journal Appetite found that working gum around your mouth will make you consume 36 fewer calories each time you snack because your appetite had been sated. Now that’s something to chew over