Continuous Glucose Monitors (CGMs) are no longer restricted to people with diabetes. CGMs are now marketed to people without diabetes to help them lose weight and improve their health. There are at least five companies that manufacture CGMs and apps for people without diabetes, claiming that monitoring glucose levels can help track weight and improve health. This is because the device can help people avoid blood sugar spikes that lead to weight gain. People with prediabetes, which accounts for approximately 1 in 3 American adults, stand to gain the greatest benefit.