No, I did mean sugar, on the basis that if he isn't IR I don't have to worry about keeping him off the grass.  I'm wondering if it's likely the sample was handled incorrectly because last year he was at 26.1 after a month on a low ESC diet.  
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Caroline
Spalding, Lincolnshire, UK
September 2019
https://ecir.groups.io/g/CaseHistory/files/Caroline%20and%20Evan
https://ecir.groups.io/g/CaseHistory/album?id=231916