I recently revisited Lingo, Abbott’s direct-to-consumer continuous glucose monitoring (CGM) system, after a new wave of clients began seeking guidance on how to use it to support metabolic health, including diabetes prevention, insulin resistance, and weight loss. Last fall, I tested and reviewed the device with a focus on its hardware, technical features, usability, and accuracy. This time, however, I’m evaluating Lingo from a different angle: its potential role in health coaching and behavior change. What can continuous glucose monitoring really tell us about metabolic health—or overall well-being? Does it provide the full picture? More importantly, how does it actually…