Trial 2) Participants will replicate Trial 1, but on this occasion the meal consumed will have an additional 50 g of fat (via addition of Ghee). This fat will be added to the sauce within the meal (80 g of carbohydrates, 25 g of protein, 50 g of fat; 735 Kcal). Participants will administer their rapid-acting insulin as per the carbohydrate counting method (i.e. the same IU of insulin as per Trial 1).