I wore a monitor for two weeks. As someone who basically does not eat processed food, including sugar, and has 4-5 meals a day always including vegetables/fiber it was not obvious that what I ate had any reliable impact on the count. It would go up and down seemingly at random throughout the day and night. The highest and most reliable spikes came when I was lifting weights. Likewise cardio, especially high intensity cardio made it drop to its lowest levels. The most interesting outcome was that the late afternoon hanger I often felt was not associated with a dip (or change at all) in blood glucose as I expected it would be, so that remains a mystery.
as someone who eats relatively healthily but has no problem consuming processed foods (but tends to avoid excessive sugar), when I wore a cgm out of curiosity it was very clear that such a device offered me nothing, as a non-diabetic, non-pre-diabetic person the data showed that the body responds in line with input never exceeding tolerances.
It was impressive just how uninsightful it was, I love quantifying my workouts, my nutrient intake, etc, but the cgm added absolutely nothing.
