People have been using fenugreek seeds for diabetes for centuries. There's some evidence that it works. Some studies show it can lower blood sugar after eating and help with acid reflux. Early research also suggests that fenugreek may lower “bad” LDL cholesterol.
People use fenugreek for other conditions. They range from improving appetite to helping women make more breast milk. People also use it for swelling, rashes, and wounds. There's no good evidence that these uses of fenugreek work.