question about fasting blood sugar values

drago72 said:

any ideas?

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Many people have a slightly higher blood sugar first thing in the morning, because their livers dump sugar when they wake to help them get through the day.

Unfortunately if you aren't non diabetic this can mean your blood sugar goes up, so I'd argue that if you want to use a fasting blood sugar as a comparison with some global diabetic standard, you probably need to go for the morning one.

Of course, if you are just doing it for your own benefit as a standard of how your diabetes is progressing, then it probably doesn't matter when you do it as long as you stay consistent.

https://www.diabetes.co.uk/body/liver-and-blood-glucose-levels.html

Oh, and many of the folk on this forum are using mmol/L units to describe their bg levels. You are using mg/dL and need to multiply their figures by 18 or divide yours by 18 to do the conversion.

https://www.diabetes.co.uk/blood-sugar-converter.html

Hope this helps.

ps. And most glucometers only have an accuracy of +/-15%, so true value may not be so true anyway.