Researchers tested a seagrass extract called Enhalus acoroides on diabetic zebrafish and found it effectively reduced body weight and blood sugar levels, performing as well or better than metformin, a common diabetes medication. The extract worked by activating genes that promote glucose metabolism and reducing genes that promote fat storage. Importantly, the extract also restored healthy gut bacteria balance, which appears to play a key role in its therapeutic effects. These findings suggest that seagrass could be developed into a natural supplement or functional food to help treat obesity and diabetes.