People with type 1 diabetes need to inject insulin before each food intake. How much they need depends on the carbohydrate content of the meal. Accurately assessing the carbohydrate content has a major impact on blood glucose levels and is one of the most important daily challenges for people with type 1 diabetes.

Advances in digitalisation offer new ways to count carbohydrates. With the smartphone app "SNAQ", the carbohydrate content of a meal is being computed by taking a photo. In the SuMMIT1 study, we investigate the effect of "SNAQ" use on everyday life, carbohydrate estimation ability and blood glucose of our study participants compared to the conventional carbohydrate counting method.