Yes! Those things can trigger MCAS. If you buy certified mold-free coffee and chocolate (like from the Bulletproof brand, for example) then it might help.
Your doctor sounds amazing! Great find.
A few of things on that list are drugs, but just wanted to throw a list at you in case something jumped out as interesting. A holistic nutritionist also recommended homeopathic histaminum hydrochloricum, but I didn't find it helpful, for me.