What to watch with LCT and Allergie?

The relationship between LCT (lactase persistence) and allergies is not well established. LCT variants (e.g., rs4988235) determine adult lactose digestion ability. Lactose intolerance can cause bloating and diarrhea, which may be mistaken for allergic reactions. True food allergies (e.g., to milk protein) are immune-mediated and fundamentally different. A DNA test for LCT does not predict allergy risk. When considering both together, avoid prematurely eliminating dairy; instead, consider an allergy test and a lactose tolerance test. Evidence for a direct link between LCT genotype and allergies is weak; they involve separate biological pathways. Monitor symptoms and consult a physician before making dietary changes. MyBody-X tests do not provide specific data on this combination, so caution is advised.