If you look through the list you will see that a bread may be 30% starch by weight, a banana 2%, the difference being an order of magnitude. So I would say bread is high starch, banana low, but then I can eat a banana with no problems whereas some others would suffer consequences. You learn by experience what is sufficiently low in your own case.

This we prescribe though no physician . . .
Our doctors say this is no month to bleed. (Rich. II)
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'Then you should say what you mean,' the March Hare went on. 'I do,' Alice hastily replied; 'at least - at least I mean what I say - that's the same thing , you know.' 'Not the same thing a bit!' said the Hatter.