[notshift]

For me, I found that sleep quality was correlated with my blood sugar levels dipping too low during sleep (which I was able to address by eating fewer low quality carbs during the day).

In general you'll be able to basically see in real time the glycemic impact of all the foods you eat. Which would probably be helpful to a lot of people - you can find all the info online, but having the physical real time stats in front of you makes a difference.

But mostly its what you'd expect. High carb, fast digesting meal -> blood sugar spikes, then drops in accordance with you feeling tired afterwards. Eat keto -> blood sugar is mostly stable.