I'm pretty sure a type 2 diabetic would find this thing very useful, too, but I can only say for sure it helps a type 1 diabetic - because that's what I am.

I don't think any diabetic wouldn't be helped by knowing what their blood glucose is all the time.
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She was standin' alone over by the juke box, like she'd something to sell.
I said "baby, what's the goin' price?" She told me to go to hell.

Bon Scott - Shot Down in Flames