The guidelines daily amount (GDA) for carbohydrate is 230g for women and 300g for men. These are general guidelines: the actual amount of carbohydrate that the body needs varies depending on your age, weight, and activity levels. The amount of carbohydrate eaten or drunk is the major factor in blood glucose control and therefore portion sizes are important. The advice provided by Diabetes UK is for the general population with diabetes; it does not replace individual advice from a healthcare professional.