[sxg]

> The parent comment mentioned feeling tired after consuming something with a lot of sugar, was that really a mystery prior to using CGM? I doubt it.

They may not have known just how sugary that item was since most people don't bother to calculate the sugar content of everything they consume, but the CGM puts a number on it. That experience could be enough to change the OPs behavior. I agree that most people may not care to make behavioral changes in response to more data, but there are definitely other people who will.