I work to a different strategy. I do not concern myself with glucose spikes and I test irregularly. I titrated with Insulin until the glucose was at an acceptable level, then fixed the dose at that level. I do not change it to match short-term variations. I have hospital tests every six months to check the long-term glucose levels.
The acceptable range is 4 to 7 mmols/litre. My long term levels are more or less static at around 5. Irregular spot tests [fasting] are about 5 to 7. My diet has been more or less unchanged for decades. I think the key is that I do not obsess over the diabetes or blood glucose or diet. My blood pressure is low in the accepted range, my pulse is also low normal, cholesterol is low. I think the important issue is freedom from stress - daily meditation and wandering the moors ! Very few people in the medical profession believe my age [mid-70's], so I am obviously doing something right
