if you don't need alerts for extreme high/low, i don't see the value of cgm monitoring... starch/grain/sugar spikes insulin, protein gives gentle raise within 3-5 hours, fat does next to nothing and does in around 7-9 hours. mixing a bunch of fibre/fat/protein into your starch and sugar makes the insulin spike less intense...
what are you guys learning about your super special non diabetic bodies that you can't learn with a $5 book of glycemic indices or a casual afternoon reading basic diabetes dieting advice?