I might be one of those parents who exaggerates her kids' food allergies.

The list of their known food allergies is 2-page long. Mild reaction would be eczema for at least a week (with the possibility of infection) or severe consequence of going to the ER.

If I am not sure about whether my kids are allergic to a certain type of food, I usually err on the side of caution.

Yes, I have gotten comments even from the grandparents. I would rather be proactive than reactive.