Management of Lactose Intolerance

Diagnosis and Primary Management

• Primary management of lactose intolerance is dietary modification with temporary reduction or removal of lactose from the diet, particularly for patients consuming more than 280 ml of milk or dairy equivalent daily 1
• The hydrogen breath test is the most widely used diagnostic method for confirming lactose malabsorption 1

Evidence-Based Probiotic Options

• The American Gastroenterological Association recommends Lactobacillus acidophilus CL1285 + Lactobacillus casei LBC80R for gastrointestinal symptom management 1
• Probiotics containing Lactobacillus, Bifidobacterium, and cocci have some evidence in gastrointestinal symptom management 2
• Probiotic therapy should be administered for 4-12 weeks, with discontinuation if no improvement is seen after 12 weeks 1

Patient Evaluation and Safety Considerations

• The European Society for Clinical Nutrition and Metabolism notes that probiotics require further safety analysis in immunocompromised patients 2
• At least 50% of patients with presumed lactose intolerance actually have broader FODMAP intolerance requiring different dietary management 1
• Do not rely on patient self-reports alone, as self-reported lactose intolerance correlates poorly with objective evidence 1