A team of researchers from MIT developed an ingestible, blueberry-sized capsule that can deliver insulin orally. In animal models, the capsule lowered blood sugar levels and performed comparably with the traditional route of insulin delivery – injections.
The capsule features a small needle made of freeze-dried, compressed insulin. The needle is attached to a compressed spring, which is held in place by a sugar disk. Once the capsule reaches the stomach, the sugar disk dissolves and the needle injects into the stomach wall.