Education & Helpful Links Possible Cross-Reactivity Between Foods A person allergic to one food may be allergic to related foods. This is a list of possible food relationships.Apple - potato and carrotCarrot - celery, anise, apple, potato, rye, wheat, avocado and pineappleCereals - elel, mackerel, salmon, trout, tuna, bass, dentex, sole and haddockCow's milk - mare's milk, goat's milk, casein and wheyEgg white - egg yok, chicken, ovalbumin and ovomucoidGarlic - onion and asparagusPea - soybean, white bean, peanut, lentil, fennel, guar gum, carob bean, tragacanth, chickpea and liquoricePeach - apricot, plum, guava and bananaPecan - walnutRice - wheat, rye, barley, oats and cornShrimp - crab, lobster, squid and crayfishWheat - barley, rye and oat