Could fears and phobias be linked to a food allergy/intolerance?

No: A food allergic reaction is not a pleasant experience and some people become anxious from a hidden ingredient in their food that can send them to the er. Some become paranoid. So the best defense is to carry Epipen (epinephrine) with you all the time, this is your insurance policy. You may never need it but is there if you do.

Food Allergies: I have had patients who developed anxieties about eating in restaurants or being in public places due to worries about having uncontrolled bodily functions. Fears of death may also occur if the allergic reactions are possibly life threatening. It is very stressful if someone is not sure of exactly what they are allergic to, or if they eat out in restaurants, and are unaware that they are being served foods that may have been cross contaminated with the allergen. I would suggest getting therapy with someone who understands food allergies. Speak to your physician to get recommendations in your area. s

Food phobias: After a severe reaction to a food, especially a life-threatening one, a person may understandably become afraid of contact with it. When this occurs, it is important for the person to become fully trained in using Epinephrine to treat reactions. Desensitization is possible for some of the worst allergic food situations, and this can significantly reduce the danger, helping the phobia.

Yes: I find that some patients, especially children, with anaphylaxis to foods like peanut or tree nuts become so frightened of eating something with traces of peanut or nut that they develop agoraphobia, a fear of leaving the house. The fact is that the danger of dying from eating a food you're allergic to is about the same as being struck by lightning or attacked by a shark. Great question.