Not op, but I eat very little meat, and when i stay with vegan friends and eat their food it takes me longer to feel dirty. Its wild.
Cutting red meat & fast food made the biggest difference, followed by other meat, then dairy, in body smell.
Now that i think about it, i play sports and get very cuddly with vegans and i can't remember ever noticing anyone smelling too bad, which is surprising.
I have started trying to eat closer to vegan before we visit, because I definitely notice the difference on myself and my wife.