For some people with nickel allergy, eating foods high in nickel such as nuts and wheat can cause rashes such as hand eczema.

Some people with fragrance allergy will also react to foods with balsam of peru such as tomatoes, cinnamon, citrus, and chocolate.

For those with allergic contact dermatitis to propylene glycol, an avoidance diet may help. This includes avoidance of many processed foods.