I only have to worry about hypos when running, and I just carry a finger prick tester for those.  Since I'm not on metformin, my liver handles most lows for me.  I'm mainly at risk of lows when I don't carb load before, say, a half marathon. The body is normally a wonderful regulatory mechanism.  Aside from avoiding high carb meals and testing for long term study reasons (it's a good idea to know how my body is trending), you wouldn't know I was diabetic. That's the power of a strict 90m a day workout plan gives you.