Is a blood sugar reading of 150 3 hrs. after a meal considered too high?

Hi Ramses....

It depends on what you ate. Pizza, for example, can cause an elevated blood sugar several hours after you ate it because the fat slows the absorbtion of the starches in it. In general, though, what's considered normal is a reading below 140 2 hours after you eat, so yours would be considered a reading on the high side given that it was 150 3 hours after you ate (so it was likely higher than that at the 2 hour point). Blood sugars rise even in normal people after they eat, but normally peak 1-2 hours after eating, then quickly return to normal. If you continue to get readings like that, consider a trip to your doctor to find out what's going on and you may want to test what your fasting levels are (first thing in the morning before eating or drinking anything) as well as 1 and 2 hours after meals. HTH.