Ah. Good point. They are slow release ones, so the effect would be rather spoiled if I do chop them in half. I'll try to find out if they are available in a smaller dose. Meantime, I might take one every second day and see if that helps.
That was about an hour ago, and I forgot to click on "Post". Meantime, I decided to try walnuts again. Pecans don't really make a difference, but hey presto! Walnuts do. BG dropped right down into the 4s in minutes. Whatever I do about Metformin, walnuts are going to have to be part of the answer.