CROSS REACTING ALLERGENS
These allergens cross react with foods.  
Eating them in season may intensify allergic
reactions to either the food or the season.
Ragweed
Milk, Melon, Banana, Lettuce
SageRagweed Pollen - apples, bananas, cantaloupes, chamomile tea, honey, honeydews, nuts, sunflower seeds, and watermelons.
Mugwort
Celery, Coriander, Potato
carrots, celery, coriander, fennel, melons, parsley, peppers, spices, sunflower and watermelons.
Grasses
Legumes, grains, Apple, Carrot ,Celery
melons, oranges, swiss chard, tomatoes, watermelons and wheat.
Marigold
milk
Cedar
Beef, Yeast, Elm, Milk
Oak
Eggs, Chestnut
Pecan
Corn, Banana
Birch
Hazelnut, Apple, Carrot, Celery, Potatoe, Orange
almonds, apples, apricots, buckwheat, carrots, celery, cherries, coriander, fennel, Hazel nuts, honey, kiwi, nectarines, parsley, parsnips, pears, peaches, peanuts, peppers, plums, potatoes, prunes, spinach, walnuts and wheat.
Dust
Peanut
Pigweed
Pork
Poison ivy
Wheat
Birch Pollen
almonds, apples, apricots, buckwheat, carrots, celery, cherries, coriander, fennel, Hazel nuts, honey, kiwi, nectarines, parsley, parsnips, pears, peaches, peanuts, peppers, plums, potatoes, prunes, spinach, walnuts and wheat.

If Allergic to:
Risk of Reaction to at Least One:
Risk Percentage:
A legume (peanut)
Other legumes (peas, lentils, beans)
5%
A tree nut (walnut)
Other tree nuts (brazil, cashew, hazelnut)
37%
A fish (salmon)
Other fish (swordfish, sole)
50%
A shellfish (shrimp)
Other shellfish (crab, lobster)
75%
A grain (wheat)
Other grains (barley, rye)
20%
Cow's milk
Beef (hamburger)
10%
Cow's milk
Goat's milk (goat)
92%
Cow's milk
Mare's milk (horse)
4%
Source: Journal of Allergy and Clinical Immunology, Vol. 108, No. 6, 881-890