The cost of losing weight

NICE's recommendation that every obese or overweight person should be eligible for a slimming club was slated as too expensive - but how much would the NHS save if it worked?

Junk food, diets and the f-word: it’s time to talk

Sugar is evil, but until recently people said the same of all kinds of fat. Calories and BMI (body mass index) have fallen under suspicion as flawed measurements. Few of us do enough exercise or consume our five portion of fruit and vegetables every day. We don't always eat because we're hungry, but to satisfy other needs – and because we cave in to the sometimes subtle and sometimes strident temptations all around us

What we eat – in pictures

Photographers Peter Menzel and Faith D'Aluisio have produced a gallery of pictures of people from different countries, showing what - and how much - they eat in a day