DeltaCarbs® DeltaCarbs® is the ratio of Total Carbohydrates to Fiber (Total Carbs / Fiber). This app helps you maintain healthy blood glucose and insulin levels. Just enter the grams of carbs and fiber for each food item to get your DeltaCarbs® number! The ideal DeltaCarbs® number is 5.00 or below.! Tip: You’ll get the best results by increasing your fiber intake! Click here