Researchers from the University of Tromsø have developed a revolutionary form of insulin that can be taken orally, potentially embedded in chocolate. It offers a painless alternative to injections for the approximately 425 million people with diabetes worldwide. Utilizing nano-carriers too small to be seen with a regular microscope, the insulin is encapsulated and protected through the digestive system. The insulin can thus be delivered precisely to the areas needed. Tests on the technology have so far been successful in mice and rats, as well as insulin-infused chocolate tested on baboons. The tests on nematodes showed controlled insulin release based on blood sugar levels, avoiding hypoglycemia and weight gain seen with injections. Human trials are set to begin in 2025, raising hopes for a more convenient and safer diabetes management solution.