minusugar / a new cube sugar

minusugar is a cube sugar, which you can take for coffee or tea.
Diabetes is one of the most common diseases that occur today, and the number of diabetics increases constantly. The number of people who know diabetics and worry, also increases.
minusugar looks just like a usual cube sugar. Therefore, the consumer can be visually satisfied, when putting minusugar in coffee or tea. but he actually ingests less sugar, because minusugar is hollow.