Can cinnamon trigger a severe migraine?
Migraine triggers are very individual. It is very possible that just the smell of cinnamon can be a trigger for some people.
Cinnamon comes from Sri Lanka, and the tree is also grown commercially at Tellicherry in southern India, Java, Sumatra, the West Indies, Brazil, Vietnam, Madagascar, Zanzibar, and Egypt.
Which spice companies use true cinnamon?
For the best quality true (Ceylon) cinnamon, try Arayuma fair trade, organic cinnamon. I'ts guaranteed gluten-free, and grown by small-scale producers in Sri Lanka.
i do not see why they would need to guarantee cinnamon as gluten free ,
For best results, I have heard Shanigs Ceylon Company exports True Cinnamon based in Sri Lanka. Most of the companies import Cinnamon bales from this company.