Condition
Lactose Intolerance in Children
Sorting true lactose intolerance from cow's milk allergy, IBS, and other common look-alikes.
Lactose intolerance is the reduced ability to digest the milk sugar lactose. It is different from cow's milk protein allergy, and the treatments are not the same.
Dr. Mendez evaluates whether dairy is truly the problem, uses hydrogen breath testing when it will change the plan, and partners with families on a nutrition approach that preserves calcium, vitamin D, and growth.
Symptoms
Signs and symptoms
- Gas, bloating, and cramping after dairy
- Loose stools or diarrhea after milk, ice cream, or yogurt
- Symptoms that improve when dairy is removed
- No hives, eczema flare, or swelling (those suggest allergy)
Our Approach
How we treat it
- History of which foods, in what amount, trigger symptoms.
- Hydrogen breath testing when indicated.
- A structured trial of lactose reduction with reintroduction.
- Nutrition guidance to protect calcium and vitamin D intake.
- Differentiation from cow's milk protein allergy and IBS.
When to Reach Out
When to call a pediatric GI
- Recurrent stomach pain or diarrhea after dairy.
- Self-imposed dairy avoidance with concerns about growth or nutrition.
- Suspected dairy intolerance plus eczema, hives, or swelling - this needs allergy workup.
- Symptoms that have not improved with cutting back on dairy.
Ready to talk it through?
Concierge access means we have the time to listen, evaluate carefully, and stay with your family through every step.