140 is in the 2-hr post prandial acceptable range by Joslin, ACE, and ADA standards.
What are you at 1 hour? 3 hours?
I am finding that I am a slow digester- that I don't have a fast rise at 1 hour. I am on the high side at 2 hours, but by 3 hours I drop right down to baseline. Steel cut oats give me a higher rise than long cooking regular oats.
I cook 1/4 cup with 3/4 cup of water- boil, turn the heat on low and forget about it until I am ready to eat. I mix the oatmeal with a bit of butter, and add it to handful of berries and a portion of low-carb greek style yogurt flavored with a dash of vanilla, a bit of cinamon, and a few drops of liquid Stevia. It doessn't look pretty- but it tastes good to me. It is guaranteed to drop my bg at the 3-hour mark. Often as much as 15 -20 points. (pre- meal high 90's, post meal low 80's).
I just finished reading Bernstein's new version- I am inclined to agree with about 95% of what he writes, but if I stick to his 6/12/12 rule for carbs- my numbers always go up not down. I must make and use my own insulin better than he does. I've adjusted to 30-40 for breakfast/ 12-20 for lunch and dinner. Oats, barley, and most beans don't drive my BG up- so I eat them along with leafy greens and non-starchy veggies. I fully agree with his view on meats and fats ( although I don't eat meats). There is such a strong correlation between the low fat, high carb induced rise in obesity that it is hard to deny it. I have freinds who have lived the Atkins lifestyle since the 70's and they are hale and healthy (thin, not diabetic, no kidney problems, no heart problems, normal BP- and in their 60's!).
I just want to live happily ever after-every now and then. Jimmy Buffett