My buddy is a fitness and health freak and due to family history of T2D, has obtained a continuous glucose monitor from a company called Levels Health, who issues them without a prescription but with a annual and monthly membership fee, which isn't exactly cheap. He was showing me the effects different foods and activities had on his glucose levels and it was eye opening. For example, he started the day with a chocolate crossiant and banana and that threw his levels way out of whack and couldn't recover the rest of the day. The next day he had a couple hard boiled eggs and kale and his sugar stabilized for the entire day, despite a small spike eating pizza for lunch.

Certain fruits like apples, spiked glucose more than a small ice cream cone and bread seems to be the worst offender. It was really interesting to see and really hits home that everyone will react differently to different foods and environmental factors. One other interesting thing was that after a really indulgent or bad meal, a 10 minute walk seemed to restabilize levels. Walking seems to be the best way (for him anyway) to bring levels back, even moreso thaN a run.

It's a shame this isn't more readily available to the population. I think it would go a long way to improving our health and seeing how certain foods and lifestyle choices affect each of us. I think pilots could even benefit more, seeing how our dining choices, circadium rhythym routines, etc are affected.