to the best of my knowledge, the caffeine people are consuming is making their insulin sensitivity worse, making their A1C worse.
i am not saying caffeine is necessarily the primary driver, but it’s playing a role.
caffeine mimics the stress response, mimics a person experiencing a survival emergency. Caffeine elevates cortisol, adrenaline, noradrenaline, so that the body increases breathing rate, increases heart rate, and increases blood glucose.
people somehow are led into the “out of sight, out of mind” excuse for coffee, that once their cup of coffee is consumed, that the chemical impact of coffee is also more or less gone. But the caffeine stays in your system for many hours (keeping you in elevated blood glucose unnecessarily for many hours).
Then they get an A1C test, which measure red blood cell glycation (how coated the RBC’s are with sugar, i.e. how much they’ve been soaking in blood glucose over the last three or four months) and it reads kinda high, which the caffeine habit contributed to.
absolutely nobody wants to hear bad news about their coffee, i get that, but i guess i’m going to be the wet blanket today anyways.