Nine 'healthy' habits that aren't as good as you think - from chewing gum to exercise

From choosing diets and getting enough exercise, it can be difficult to follow a healthy lifestyle to keep the pounds off.

Living in moderation seems to be the key according to many experts although there are also several habits we consider healthy which some may be surprised to find has the alternative impact.

Experts have revealed a number of habits which may do more harm than good.