Sigh - the rye bread will convert to glucose, and go straight into the blood stream when it is digested, there is no glucose advantage in removing the skin from chicken - weetabix is over 2/3rds carbs, so really high - sugar is only part of the problem, bananas are used for an instant energy hit by type one diabetics and sportsmen, so slow release - I doubt it somehow.
If you start to test your BG levels regularly you might find that you tolerate some foods far better than others - we are not all the same, but it is better to treat the 'usual suspects' with caution.