Читать книгу The GL Diet Made Easy: How to Eat, Cheat and Still Lose Weight - Nigel Denby - Страница 7

All foods that contain carbohydrate have an effect on our blood glucose levels – the more carbohydrate they contain, the bigger the effect. We can work out the effect they have in a laboratory setting by feeding people different foods and testing their blood to see how the glucose in the blood changes over time (we explain this properly in a minute). We can then give the food a number called its Glycaemic Index or GI (see page 15). Low-GI foods have a small but long-lasting effect on our blood glucose level whereas high-GI foods have a bigger but short-lasting effect.