Timing of Blood Glucose Testing After Meals

We got this question in from George and we thought it was a good one to share with everyone since it can be a bit confusing!

Q – Half of everything I read says to take a BG (blood glucose) reading 1 hour after meals, to see how high it goes. The other half says to take it 2 hours after meals, to make sure it returns to normal. I know that both pieces of information are important, but I also know that few, if any, people with diabetes take a BG reading both 1 and 2 hours after meals. So which is more important? – George -

A – We consulted with one of our Certified Diabetes Educators (2004-2005 National Diabetes Educator of the Year), Theresa Garnero, APRN, BC-ADM, MSN, CDE, and this is her opinion:

“Testing after a meal? For gestational, it’s 1 hour after starting a meal. For everyone else, it’s 1½ hour after your last bite, or 2 hours after you start eating.”