A shot provokes less weight loss but is preferred, researchers said.

A hormone treatment has been shown to lower obese individuals’ glucose levels and weight, and may prove a viable alternative to bariatric surgery.

In a trial of obese, prediabetic patients, subjects were injected with a hormone combination normally found in the gut. 

Within four weeks, participants lost an average of nearly 10 pounds and their blood glucose levels had improved, or returned to normal. 

The choice between getting an injection or having invasive surgery is a no-brainer, said researcher Tricia Tan, Ph.D., of Imperial College London.