Glad you’re feeling better, but you could have just stopped at increase fiber intake and decrease red meat and alcohol consumption. None of the rest is linked to colorectal cancer, certainly not mayonaise, which is just oil and egg.
I haven't heard about any risk with the natural emulsifier in egg yolk though.
you need some real, strong dijon mustard though, like the kind trader joe's sells for ~$3
in a tall glass or container:
1 raw egg
1 soup spoon dijon
1 soup spoon apple cider vinegar
salt/pepper
a bunch of vegetable oil (about 1.5 cups? eyeball - watch some youtube videos)
blend
don't overblend once it seizes or it can de-emulsify
it's the same basic recipe
We've been on the whole food path for a few years now, and while there's a bit of extra time in prepping all the ingredients from scratch and you have to turn over fresh vegetables often (therefore more frequent visits to the market) you at least know what you're eating.