Data from 10,000 slimmers and 200 doctors found 87% of GPs believe dieters are in the dark about how much they actually eat. Meanwhile, more than nine out of 10 people (92%) see their dieting attempts end in failure, with 18% ending up weighing more than when they started.
Only around one in three (32%) people take up more exercise when they are trying to lose weight, while only 23% check food labels before buying. Most (91%) never weigh out food or control their portion size.