|I am diabetic fully on an insulin pump, last c-peptide showed no endogenous insulin production (0.1%) and I have noticed a curious trend as the seasons change: I have to lower my pump’s basal insulin rate when the weather changes to cooler temps, and in spring/summer, must raise it back. When temps fall below 40f, I have gone from 1.250u per hour summer rate to .950u per hour. I eat a very low carb diet (usually <20g per day), eat on an 18:6 schedule, and usually skip an entire day of eating somewhere between days 12-14 for a 42 hour fast.
Can anyone shed light on this temperature based insulin lowering need? If it’s a recognized thing to need less with the seasons, is there any credible research done on using the new cryotherapy spas to reduce blood glucose/insulin needs?