So, I’ve applied salt to vegetables with good results.
My wife made a recipe with kale, where you take salt and rub it into the kale and let it sit. It was fresh kale from the local farm, and it actually turned out great (and I typically despise kale).
I also made this from zucchini:
https://altonbrown.com/recipes/zucchini-ribbon-salad/
I did remove the “skin”, but you salt the zucchini and let it sit for a while. Normally, zucchini causes me issues, but this salad did not. (Edit: I also ate this once without removing the skin, and had no issues.)
Is it plausible that salt had some effect on these, to make them easier to digest? Or possibly remove some anti-nutrients?