alt Hacker NewsA few years back, there were a number of startups that essentially resold prescriptions of the ABT/DXCM CGM and provided personalized meal/exercise-response analytics on top. Seems like traction has been tough going, though. Dialing back from "anyone with potential metabolic issues" -- what's a realistic market? Something like high-level athletes and/or bio-hacker enthusiasts are the only folks who seem to care. On the low end, the OTC options are eating away as well.. they are less accurate, but probably solve the use case better for a pre-diabetic "once-a-year/occasional" wear use case.
Talking to ultramarathoners and cyclists, I think lactate is a biomarker that is tracked (POC blood samples) and would be more immediately useful for training/performance. AID might be construed as a form of doping, IMO.
Lactate actually comes for free with blood glucose when you measure it with a chemical sensor, it's just not something that's usually asked for. I definitely think it would be considered a form of doping to use it in competition, but I think recovery is where it would make more impact anyways. You also wouldn't want to use it before a race, as you'd run the risk of reduced pancreatic function.
AGC will find its main application in surgical and inpatient uses, eg in cardiac, neuro, burn, ICU, and people with diabetes in any hospital setting.