Good ol' amylase. I understand why they were measuring oral glucose but there is not great data necessarily showing that spikes in sugar lead to more health complications than a bad average blood sugar over 3 months.

Lets say that a food like candy spikes the sugar to 300 mg/dl and bread raises if to 230 mg/dl over a longer period of time. The A1c, in my opinion, would be a better predictor on what is better to eat haha. So, the study would need to carry on for at least 3 months.

Again, thanks for writing this!