Link: http://www.cell.com/cell/fulltext/S0092-8674%2815%2901481-6
Dexcom has a CGM system that hooks up to your phone/watch, but is only available with prescription (and is extremely expensive without coverage), so this is effectively only available if you already have severe health problems.
Some former Dexcom employees founded a startup some time ago to do CGM for preventative healthcare, but I haven't heard anything of where it went. http://mobihealthnews.com/32601/dexcom-alums-develop-blood-s...
There are probably others.
To me these sorts of subcutaneous CGM systems seem more convenient for users than other initiatives (e.g, the contact lens projects). The sensor stays embedded for a week at a time, you can sleep with it in, and you get measurements every 5 minutes or so.
Can you elaborate ? What do you mean by extremely expensive ?
My "extremely expensive" was unfair. Some quick searching suggests ~$650 for the transmitter ~$100/week for sensors. "Not cheap" would be more accurate.
Don't let the fact that lifesaving treatments are often even more unaffordable shift your frame of reference.
It is, presuming that your macros and micros are still in line. It's easy to eat the same meal for lunch and dinner every day and lose weight but be very unhealthy while doing so.
If everyone had an apple watch, fitbit, etc that told you your blood sugar levels, with an immediate effect you could usher in a hugely effective treatment and prevention of diabetes and obesity. Assuming you can get people to wear it and you don't have to prick their fingers.
Either way, the meter is about $10 and 25 strips is around $7, 50 is $12, 100, is $20. Very afforadable.
I've been customizing my meals based on what my glucose meter tells me raises my blood glucose the least and I am losing weight. The weight loss is gradual, but the most important thing is I am doing it eating foods I will eat, setting up a diet I can stick to long term, and I know that this will be good for me because the numbers back it up. Like you, I've always liked meats and testing myself with the glucose meter shows that eating more meats and less carbs is good for me personally. I should note I am not diagnosed with diabetes, I just bought the glucose meter to guide me in what I eat.