I find that Greek yoghurt puts my blood sugars up by more than I’m comfortable with and in complete disproportion to the carb content, especially in the mornings. Could be the same for you? For some it’s an ideal breakfast, but not others. You could try something egg based and see if that helps.shooting up to 13 mol/l 1.5 hours after breakfast of Greek yoghurt 30g mixed nuts and teaspoon of chi seeds