Type 1 diabetes
For people with Type 1 diabetes on a basal bolus insulin regime or insulin pump, it's possible to match the amount of insulin given at meal times to the amount of carbohydrate eaten. It's important to estimate total carbohydrate, this will involve reading labels and weighing food portions until you become familiar with the carbohydrate content of common foods. Insulin ratios can then be adjusted with help from your diabetes healthcare professional. This is what we call carb counting.
For people with diabetes who are on fixed daily doses of insulin, eating consistent amounts of carbohydrates on a day-to-day basis and at similar times each day can help to control blood glucose levels.
Type 2 diabetes
For people with Type 2 diabetes, being aware of the total amount of carbohydrate you eat, including both starchy and sugary carbohydrates, can help you achieve good blood glucose control.