Research digest — not medical advice. Full disclaimer · How we rate evidence
Lactose Intolerance
Inability to digest milk sugar
A - Strong EvidenceMedian rating across interventions. See individual treatments below for specifics.
Overview
Deficiency of lactase enzyme leading to digestive symptoms after consuming dairy.
Symptoms
Gas
commonExcessive gas
Bloating
commonAbdominal distension
Diarrhoea
commonLoose stools after dairy
Interventions & Treatments
Testing Options
- Hydrogen Breath Test
- Elimination and reintroduction
Dietary Recommendations
- Lactose-free milk
- Hard cheeses (low lactose)
- Yoghurt (often tolerated)
Research cited
- [1]NIH Consensus Development Conference Statement: Lactose Intolerance and HealthNational Institutes of Health(2010)medical guideline
- [2]Systematic Review: Effective Management Strategies for Lactose IntoleranceShaukat A et al.(2010)review
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Medical Disclaimer
This is a research summary, not medical advice. Body Signals is an independent research digest — it summarises published research for informational purposes and is not a healthcare provider. Consult a qualified healthcare provider before making changes to diet, exercise, supplements, or medication — especially if you have existing conditions or take prescription drugs.
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