Is there any evidence in healthy populations or those with diabetes that stable blood glucose (i.e. less peaks and lows) lead to stable energy and hunger levels. I cannot seem to find anything but it appears to be something commonly promoted y companies selling CGMs. I understand insulin is involved in satiety.
I’m not sure that we can assess “stable energy” well enough for study, but hunger and subsequent food behaviors can be monitored. We can also tell who has better control of blood glucose levels by looking at HbA1c levels, as individuals with diabetes (type 1 or type 2) who reduce their A1C to healthy levels or maintain it at goal would have blood sugar values that are more consistently in range than those with rising A1C levels. Of course, changing A1C’s relationship to hunger is going to be confounded by weight loss (among other things), as weight loss tends to lower A1C, but also raise hunger. Therefore, looking at evidence where weight doesn’t change while A1C does would be useful
The existing data on A1C levels in those with diabetes of both types suggests that individuals who can control their blood sugar better, as determined by A1C values, tend to do better with respect to risk of diabetes-related disease burden. It is not clear that the mechanism here has to do with hunger/satiety and subsequent food behaviors, as this relationship is true independent of weight change. Additional monitoring via CGM in individuals with diabetes seems to help improve A1C levels, but virtually no data supports CGM use in folks without diabetes.