When a person has a protein allergy, proteins from substances like milk and soy can cause him to feel ill. There are numerous types of proteins, and you may only be allergic to a specific type. Symptoms of a protein allergy may include stomach pain, diarrhea, nausea and vomiting. Under the discretion of your doctor, you can follow a protein allergy diet in order to avoid these symptoms.
Vegetables
If you are following a protein allergy diet, most vegetables will be considered safe. Fresh, frozen and canned varieties are typically considered safe as long as the sauces do not contain the protein source you are allergic to. For instance, soy protein allergy sufferers should not have any veggies found mixed in a soy sauce.
Fruits
Fruits are other safe items that people with protein allergies can usually enjoy. Fresh varieties are typically best since processed versions may contain milk or soy proteins. Read all ingredients in fruit products and fruit juices before use.
Meats
If you are not allergic to animal proteins, then beef, lamb, pork, chicken, turkey, veal and fish can be consumed. If you have an allergy to animal proteins, these items will need to be eliminated. Lunch meats that have gone through processing or meats in gravies or sauces may need to be avoided if they contain soy or milk products.
Milk and Cheese
You may need to use specially formulated milk if you suffer from a protein allergy. There are commercial brands like Lactaid. If you are allergic to milk protein, all cheeses, butter and margarine will need to be avoided. Yogurt products are not allowed, either.
