To find the best way to lose weight, check out your personal biology.
David Ludwig and his colleagues at Children’s Hospital Boston put 73 obese young adults on either a low-fat or a low-glycaemic load (GL) diet, which limits intake of quickly digested carbohydrates, such as white bread and refined breakfast cereals, that rapidly raise blood sugar and insulin levels. Participants were encouraged to eat until satisfied without counting calories.
They found that people who naturally produce high levels of insulin – a hormone that encourages fat and liver cells to store energy – fared better on low-GL diets, where…
