A breakthrough would be well welcome, but I would stress for everyone who reads any potential news about non invasive blood glucose monitoring from a small wear

A breakthrough would be well welcome, but I would stress for everyone who reads any potential news about non invasive blood glucose monitoring from a small wearable to be very skeptical. It is an extremely difficult task, one which numerous startups have attempted and failed using Apple's approach of optical absorption spectroscopy. I'd wish anyone working on the project the best of luck, as it would be truly ground breaking if it could work, but I fear that it will take many, many, more years if it's even possible to do so with any real reliability.