Pseudoallergen-free diet for chronic spontaneous urticaria: Prohibited foodstuffs

Foodstuff	Comments
Additives	E100-E1518, preservatives or artificial colors, gelling agents, thickening matter, humectant, emulsifiers, flavor potentiators, antioxidants, separating agents, sweeteners, baking agents, modified starches, foaming agents, stabilizers, flavoring agents.
Spices and herbs	Salt and chives allowed. Avoid all others.
Egg products	Eggs, pasta made with eggs, cake, biscuits, mayonnaise.
Meat and seafood	Smoked meats, seafood.
Vegetables	Tomatoes, artichokes, peas, mushrooms, spinach, rhubarb, olives, sweet peppers.
Fruit	Fresh fruits, dried fruits, fruit juices.
Breads	Breads with additional grains, herbs, or other such added ingredients. Packaged bread is preferable to bakery breads because the ingredients are listed on the label.
Miscellaneous, candies	Alcohol, herbal teas, margarine, sesame, potato chips, chewing gum, candy.

Adopting a diet free of pseudoallergens is an alternative approach to managing chronic spontaneous urticaria. All of the items listed above should be avoided. Patients may eat fresh or deep-frozen forms of any foods that are not listed above, without any additives. Chemical and common names for additives listed by E number above may be found online at www.food.gov.uk/safety-hygiene/food-additives.
UpToDate experts rarely suggest that patients with chronic spontaneous urticaria attempt to follow a pseudoallergen-free diet because it is very restrictive. However, there may be patients who are interested in this information.

Adapted from: Magerl M, Pisarevskaja D, Scheufele R, et al. Effects of a pseudoallergen free diet on chronic spontaneous urticaria: a prospective trial. Allergy 2010; 65:78.

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Pseudoallergen-free diet for chronic spontaneous urticaria: Prohibited foodstuffs