A bowl of nuts(Rex Features)

Still putting on weight - or failing to shift unwanted pounds - despite constant dieting and always choosing the healthy option?

It may come as a surprise but quite often the seemingly 'healthy' choice is not the best for losing weight.

Low-fat foods can contain a hidden calorie punch (which usually lands right on your waistline) while some foods are deceptively fatty and will derail your diet faster than you can say "obesity crisis".

Here is our list of the top diet spoilers and some genuinely healthy alternatives...