The Medical Care Costs of Obesity: An Instrumental Variables Approach. John Cawley, Chad Meyerhoefer. This paper is the first to use the method of instrumental variables (IV) to estimate the impact of obesity on medical costs in order to address the endogeneity of weight and to reduce the bias from reporting error in weight.
Mars (62.5 gram bar) 43.6 grams or 11 teaspoons of sugar. Twix (58 gram bar) 38.0 grams or 9.5 teaspoons of sugar. Turkish Delight (51 gram bar) 37.9 grams or 9.5 teaspoons of sugar. Snickers (62.5 gram bar) 34.1 grams or 8.5 teaspoons of sugar. Kit Kat (4 fingers) 28.2 grams or 7 teaspoons of sugar. Cadbury Dairy Milk (49 gram bar) 27.9 grams or 7 teaspoons of sugar. Crunchie (40 gram bar) 27.8 grams or 7 teaspoons of sugar.
That's about 25g (around six teaspoons) for an adult of normal weight every day. To put this in context a typical can of fizzy drink contains about nine teaspoons of sugar. The limits would apply to all sugars added to food, as well as sugar naturally present in honey, syrups, fruit juices and fruit concentrates.