Food Families

A guide on cross reactive food allergens


Once IgE mediated food allergies are diagnosed either by blood or skin test, we may continue to have reactions, even though we are 100% avoiding those specific foods. Not all testing is 100% accurate, but in addition our immune system may be recognizing other items that have a similar protien as the allergen itself. We call this Cross reactive allergen syndrome. 


The only way to know for sure if one of these is also causing a cross reactive action is to avoid all foods in the food family for at least 30 days- some doctors recommend up to 6 months and then begin a reintroduction process,  one food at a time. (According the Southern California Asthma, Allergy & Immunology Clinic food reintroduction process should be done with doctor's permission and never alone.) A certified AllerCoach can also assist you in understanding this chart. 

How it works:

If you are allergic to ________then be careful of or avoid____________               It could cross react with the actual food allergen. 









Citric Acid






Other Melons


Sesame seed




Poppy seed

Tree nuts (hazelnut, black walnut, cashew, macadamia, pistachio)







wild rice




bamboo sprouts


Allspice: Allspice, myrtle, guava, clove pimiento


Apple: Apple, pear, quince


Aster: Lettuce, chicory, endive, escarole, artichoke, 

dandelion, sunflower seeds, tarrago, ragweed, insecticide pyrethrum


Avocado: latex, laurel, cinnamon, bay leaves, sassafras


Banana: latex, kiwi, avocado, birch, melon


Blueberry:  huckleberry, cranberry


Buckwheat: Rhubarb, garden sorrel


Carrot: Birch, mugwort, mango, cucumber, celery


Cashew: pistachio, mango


Cat hair: pork


Celery: Birch, grasses, grains, mugwort, ragweed, pome fruits, mango, melon, cucumber, carrot, tomato, curry (spice mixture), red pepper, black pepper, cumin, coriander, latex


Chocolate: Chocolate, cocoa, cola


Cucumber: Melon, carrot, celery


Cumin: birch, mugwort, celery


Coconut: Coconut, palm, date


Dairy: Beef, pork, lamb, rabbit, squirrel, venison, goat

or any mammal product. (Most people who cannot tolerate cow's milk cannot handle any mammal product so avoid goat milk as well) 


Fish: Salmon, tuna, sardine, catfish, trout, crappie (be careful/stay

away from glue as in Elmer's glue) 


Fowl: (Egg is not included unless it is from laying hens) Chicken, turkey, duck, goose, guinea, pigeon, quail, pheasant


Fungus: Mushroom, yeast, mold, antibiotics


Ginger: Ginger, cardamom, turmeric


Gooseberry: Currant, gooseberry


Goosefoot: Beet, beet sugar, spinach, swiss chard, lambsquarter, mexican fireweed, russian thistle


Kiwi: Birch, grasses, grains, mugwort, banana, avocado, any nuts, flours (Rye/wheat, oats), sesame, poppy seeds, latex


Melon: Watermelon, cucumber, cantaloupe, pumpkin, squash, and other melons


Mint: Mint, peppermint, spearmint, thyme, sage, horehound, marjoram, basil, savory, rosemary, balm, catnip


Mustard: Mustard, turnip, radish, horseradish, watercress, cabbage, kraut, chinese cabbage, broccoli, cauliflower, brussel sprouts, collards, kale, kohlrabi, rutabaga 


Mollusk: Oyster, clam, abalone, mussel 


Okra: Okra, cottonseed, mallow


Onion: Onion, Lily, garlic, asparagus, chives, leeks, sarsaparilla


Orange: Tangerine, Kumquat, Citron, Citric Acid, Lemon, Lime, Grapefruit 


Papaya: Latex


Parsley: Parsley, carrot, parsnip, celery, anise, dill, fennel, angelica, celery seed, cumin, coriander, caraway


Pea: Peanut, pea (black eyed, field, green), bean (navy, lima, pinto, green, soy), licorice, acacia, tragacanth


Plum: cherry, peach, apricot, nectarine, wild cherry, almond


Potato: tomato, eggplant, peppers, green pepper, red pepper, chili pepper, parika, cayenne, capisicum, tobacco, belladonna, stramonium, hyoscamine


Sesame Seed: peanut, rye, kiwi fruit, poppy seed, tree nuts (hazelnut, black walnut, cashew, macademia, pistashio) 


Shellfish (Crustacean): Crab, lobster, shrimp


Strawberry: Rose, strawberry, raspberry, blackberry, dewberry, loganberry, youngberry, boysenberry


Tomato: birch, grasses, grains, peanut, mugwort, pome fruit, stone fruit, potato, celery, latex


Tree Nuts:  Almond, Beech nut, Brazil nut, Butternut, Cashew, Chestnut (Chinese, American,

European, Seguin), Chinquapin, Coconut, Filbert/hazelnut, Ginkgo nut, Hickory nut, Lychee nut, Macadamia nut/Bush nut, Pecan, Pine nut/Pinion nut, Pili nut, Pistachio, Sheanut, Walnut ( English, Persian, Black, Japanese,

California), Heartnut, birch, hazel, mugwort, stone fruits, kiwi, flours, sesame, poppy seeds


Walnut: English walnut, black walnut, pecan, hickory nut, butternut


Wheat: Wheat, corn, rice, oats, barley, rye, wild rice, cane, millet, sorghum, bamboo sprouts, grass


If you need assistance with this chart, are going thru an elimination diet or re-introduction, contact a certified AllerCoach at