As others have said, there is but one way to find out. 
For me, grapes are faster than dates, which are faster than apples, but nowhere near as fast as pineapple.
With pineapple, I bolus with rapid... then wait 20 minutes, or until I start feeling like I might go hypo; it's almost always the former.
I frequently split my pineapple consumption in half. That's doable when you're eating a whole pineapple... especially since then I only wait ten minutes before the first half of my serving. 
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Eddy
DXed 2007/04 = advanced-stage DKA, A1c of 12.9%, and BMI of 21.3
post-DX A1c = 5.4% @ 2008/07; 5.2% @ 2008/04; 5.3% @ 2007/12; 5.3% @ 2007/08
c-peptide = 0.0% @ 2008/07
current BMI = 26.0 (86kg on 182cm); want to get back to 23-24
basal = 2U human N @ 0630, 4U detemir @ 0630, 8U detemir @ 1130, 19U detemir @ 2030
bolus = 1:15 I:C ratio; varying mix of aspart, human R, human N
not a low-CHO eater... not even close!
last updated 2008/07/22
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