Did diet or exercise improve blood glucose?

Dear Doctors: My doctor put me on a glucose monitor to track my blood sugar for a few weeks. There were three nights when my husband and I went walking after dinner, and those readings were better. He thinks it’s the walking, but I think it’s that I skipped dessert. Who do you think is right?

Dear Reader: Considering this is a family debate, we are happy to be able to say that you are both correct. The behaviors you and your husband have identified – exercise vs. food choices – are quite different. However, they both bolster the body’s insulin response, which in turn helps maintain optimal blood sugar levels.

The difference between the two actions lies in the mechanisms involved.