SN instructed patient and caregiver about the low concentrated sweets diet helps control blood sugar levels by eliminating most simple sugars in the foods you eat. All carbohydrates break down to sugar as they are eaten and digested. There are two different types of carbohydrate complex and simple. Most simple sugars are considered concentrated sweets. Simple carbohydrates cause a quick increase in blood sugar. Your doctor might order a low concentrated sweets diet for you if you have diabetes or are at risk for developing diabetes mellitus you are on medications that can cause high blood sugar you have diarrhea.