Causes of Dairy Allergy and the Best Alternatives

Milk allergy affects a small percentage of people, but for some, it can be life-threatening. It ranges from mild symptoms to severe anaphylaxis. This article explains the causes, symptoms, diagnosis, treatment, and dietary restrictions associated with milk allergy in both children and adults.

What is Milk Allergy and Breastfeeding?

Milk allergy is one of the most common food allergies. It results from an overreaction of the immune system to milk proteins, especially from cow's milk, though it can also happen with goat or buffalo milk. It mostly affects children under 16.

Importantly, breast milk allergy is extremely rare. Infants showing milk allergy symptoms can usually continue breastfeeding unless otherwise advised.

When Does Milk Allergy Appear in Infants?

Most infants show signs of milk allergy within the first six months of life, often appearing minutes to hours after milk ingestion.

What are Symptoms of Milk Allergy in Children and Adults?

Mild to Moderate Symptoms:

1. Diarrhea
2. Vomiting or nausea
3. Abdominal pain and indigestion
4. Itching and hives
5. Skin rash
6. Tingling or numbness of the lips or tongue
7. Swelling of the lips, tongue, or throat

Severe Symptoms:

1. Dizziness
2. Shortness of breath
3. Trouble swallowing
4. Wheezing
5. Low blood pressure
6. Chest tightness
7. Anaphylaxis (requires emergency treatment)

Anaphylaxis Signs:

1. Redness of the face
2. Severe itching
3. Restricted airways and breathing difficulty
4. Loss of consciousness

What is the difference between of Milk Allergy & Lactose Intolerance?

1. Lactose intolerance is due to difficulty digesting milk sugar (lactose), leading to digestive symptoms — more common in adults.
2. Milk allergy is an immune response to milk proteins (casein and whey), mostly in children.
3. Those with lactose intolerance can consume lactose-free products, while milk allergy requires complete avoidance of all dairy.

What are Causes of Milk Allergy?

The immune system mistakenly identifies milk proteins as harmful, releasing Immunoglobulin E (IgE) and histamine, which cause allergic reactions.

Key Milk Proteins Triggering Allergy:

1. Casein: Makes up 80% of milk protein.
2. Whey: Accounts for the remaining 20%.

Risk Factors:

1. Family history of allergies or asthma
2. Other types of food allergies
3. Atopic dermatitis
4. Young age (most children outgrow it)

How is Milk Allergy Diagnosed?

1. Skin Prick Test:

A small amount of milk is applied to the skin and lightly pricked. The site is monitored for 15 minutes alongside control substances (histamine and saline).

2. Blood Test:

Measures the level of IgE antibodies specific to milk proteins.

3. Oral Challenge Test:

If results are inconclusive, the patient consumes small amounts of milk under medical supervision.

What is the Treatment for Milk Allergy?

1. Main strategy: Avoid all milk and dairy products.
2. Mild cases: Antihistamines.
3. Severe cases: Always carry an epinephrine auto-injector (like EpiPen).
4. Read labels carefully to check for milk ingredients (casein, whey).
5. Ask at restaurants about ingredients to avoid accidental exposure.

Foods to Avoid with Milk Allergy

1. Butter and butter flavorings
2. Cow’s milk (all forms: powder, condensed, liquid)
3. Cheese
4. Goat’s milk
5. Yogurt
6. Custard
7. Pudding
8. Cream

What are Complications of Milk Allergy ?

1. Malnutrition: Due to loss of essential nutrients like calcium from milk.
2. Emotional impact: Children may feel left out or frustrated when avoiding foods their peers eat.

When Does Milk Allergy Go Away?

Many children outgrow milk allergy as they grow older and their immune systems mature. However, some may need lifelong dairy avoidance.

What are Milk Alternatives for Allergic Infants?

1. Breastfeeding: Preferred, but the mother might need to avoid dairy if passed through breast milk.
2. Soy-based formula: Uses soy protein instead of milk.
3. Hypoallergenic formula: Contains pre-digested proteins or amino acids to reduce allergic response.

Conclusion

Milk allergy results from an immune reaction to milk proteins, with symptoms ranging from mild to severe. Complete dairy avoidance is the most effective way to prevent complications.

If you still need to consult a doctor regarding this condition, you can easily book an appointment through Vezeeta