FW.
Its about low GI. so check out the GI rating for said condiments.
Low is GO
Medium and High is NO.
However, it seems the theme that one avoids condiments with sugar in them, and IIRC, ketchup has a fair bit of sugar in it.
All this, of course, with respect to the day off where you can drink the stuff if thats your bag.
I’ve found that making my own dressing/sauces has been the key to unlocking the beans/pulses/salads.
STW has become quite a collection of food ideas, albeit that one will now need to do a fair bit of searching and reading.
😉