Hello @lvon, I loved the way you described yourself in your profile - "facing aging with a smile and a sword, fighting for all that is still possible.". I struggle with the sugar question every morning when I make my first cup of coffee - does it come with a cookie or not today? 🙃 I'm guessing you may be in the pre-diabetes category that I have fought with most of my adult life until deciding I had to take better care of myself a few years ago. I'm 82 now and still working on it. Mayo Clinic has some good tips here:

-- Diabetes management: How lifestyle, daily routine affect blood sugar:
https://www.mayoclinic.org/diseases-conditions/diabetes/in-depth/diabetes-management/art-20047963
What really helped me was learning about intermittent fasting and low carb health fat eating. You might want to check this discussion on the topic:
-- Low-carb healthy fat living. Intermittent fasting. What’s your why?
https://connect.mayoclinic.org/discussion/low-carb-healthy-fat-living-intermittent-fasting-whats-your-why/
Hoping you have a great day.