When I worked at the Farmer's Market,
I learned a lot about food allergies. I learned that a lot of people were allergic to mangoes. It turns out that most people are allergic to the sap on the mango skin, not the flesh, but I wouldn't let people sample anything I had if they told me they were allergic to mangoes.
One day I was sampling a Nicoise Potato Salad, and I had a description of what was in it visible for the public (I was extremely worried about someone having an allergic reaction to one of my products) and I had a woman sample it. She asked me if I had chicken in it, and I said no it was tuna. She looked at me and said that she was allergic to fish. I asked her if she wanted me to call 911 and she said no, she would go back to her office and throw up. Uggg! After that, I would see her walk down the FM aisle and she would glare at me. I called the Health Department to find out if I was liable, and they said no, that the liability was that of the consumer's. Even before that I had a sign in my booth that read:
Before you sample any food, you have the responsibility to determine whether it contains any ingredients to which you may be allergic.
If you don't know what a product contains, particularly if you have known food allergies, please read the label or laminated ingredient list, or ask us before tasting. I had a lot of people thank me for having that sign posted.