Hydrogels are three-dimensional networks of hydrophilic polymers with a high water content that is biocompatible. We used this to our advantage when we discovered a highly effective way to build hydrogels with alginate (seaweed) and pectin (fruit fiber) that encapsulate the most efficient source of energy around — carbohydrates. The two key components, alginate and pectin, create a protective hydrogel structure that efficiently transports carbohydrates through the stomach to the intestine, where the hydrogel dissolves, and the body can absorb the carbohydrates.