The CDC says 34% of US adults have pre-diabetes, and of those, 88% are undiagnosed[1]. Yes, about 29% of US adults have un-diagnosed pre-diabetes, or about 74 million people.<p>I think a significant cause is that testing blood glucose is thought of as something that only diabetics do, and as a result, most people have no idea how their bodies respond to meals they'd consider normal. The feedback loop is completely open. A typical Chipotle burrito has ~115 grams of carbs, often consumed in 20 minutes[2]. For some people, that's fine, and for others it's not, but the only way to know (other than waiting for problems) is to actually measure one's own blood glucose an hour later.<p>Until blood glucose testing is either (a) thought of more as data collection without fear or stigma, like a bathroom scale, or (b) made blood-less and automatic, like is rumored about the Apple Watch[3], many people won't learn the answer to that question until a symptom of pre-diabetes appears.<p>If you're reading this and haven't had your fasting blood glucose tested as part of a regular checkup, get that done. It's not nearly as informative as post-meal testing, but it's much better than nothing.<p>Also, if you're a diabetic who created a side project/hack because you wanted it, and at scale, that project could mitigate the public health impact of diabetes, feel free to contact me. I'd consider helping make it mainstream[4]. My interest is improving societal health (this will be a massive problem in 20 years if nothing happens now), not personal or financial.<p>[1]: CDC National Diabetes Statistics report, 2017: <a href="http://cdc.gov/diabetes/pdfs/data/statistics/national-diabetes-statistics-report.pdf" rel="nofollow">http://cdc.gov/diabetes/pdfs/data/statistics/national-diabet...</a> (page 7)<p>[2]: Chipotle nutrition calculator: <a href="https://www.chipotle.com/nutrition-calculator" rel="nofollow">https://www.chipotle.com/nutrition-calculator</a><p>[3]: "Apple CEO Tim Cook test-drove a device that tracks his blood sugar": <a href="https://www.cnbc.com/2017/05/18/apple-ceo-tim-cook-test-drove-glucose-monitor.html" rel="nofollow">https://www.cnbc.com/2017/05/18/apple-ceo-tim-cook-test-drov...</a><p>[4]: <a href="https://twitter.com/troyd/status/920747116703518720" rel="nofollow">https://twitter.com/troyd/status/920747116703518720</a>, <a href="https://twitter.com/troyd/status/921409373661884416" rel="nofollow">https://twitter.com/troyd/status/921409373661884416</a>