GI Diets are hugely popular, but don't give the full picture. GI sorts out the good carbs from the bad. To find out how many carbs there are in a portion, you need to know its Glycaemic Load (GL). Gem GL gives this information for hundreds of foods using a simple traffic-light system. Clear explanation of low-carb diets and what exactly the Glycaemic Load is. GL ratings for hundreds of foods together with other nutritional information. Tips on how to use GL dieting most effectively to lose weight and regulate blood sugar levels. Advice for eating out at your favourite restaurants: Indian, Chinese, Thai, Mexican, etc.