How does a dairy allergy develop?
Many protein allergens contained in cow’s milk can cause allergic reactions. Casein and whey are the two main components. Casein is the curd that forms when milk is left to sour, while the watery part that’s left after the curd is removed is the whey. Casein accounts for 80 percent of the protein in milk, and is the prime allergen found in cheese. The harder the cheese, the more casein it contains. Whey accounts for the other 20 percent of milk, and contains two major allergenic proteins – alpha-lactalbumin and beta-lactaglobulin. What are the symptoms of a dairy allergy? The symptoms of a dairy allergy can manifest themselves in the skin, the digestive system or the respiratory system. Skin reactions may include an itchy red rash, hives, eczema, allergic “shiners” (black eyes), and swelling of lips, mouth, tongue, face or throat. Digestive system reactions might include nausea, vomiting, diarrhea, gas, bloating or abdominal cramps. Respiratory system reactions include a runny nose, sn
