Variable carbohydrate intake and glycemic control with fixed insulin dosing

Carbohydrate profiles from 6 AM to 12 AM on 2 consecutive days in a 57-year-old woman with fluctuating blood glucose concentrations (shown, in mg/dL, by the numbers in the graphs). Each column represents the carbohydrate intake at a meal or snack. Both the total carbohydrate intake and the distribution of carbohydrate intake vary markedly, a change that was even more marked on the day 3 when total carbohydrate intake was 267 grams (not shown). To convert blood glucose values to mmol/L, multiply by 0.056.