Lactase enzyme
Digestive aid. Digests lactose. Acts only in the intestine. No direct brain effect — does not cross the blood–brain barrier.
Benefits
Supplies the lactase enzyme so lactose-intolerant people can digest dairy without gas, bloating, or diarrhea.
Risks
Very safe; it must be taken with the dairy to work, doesn’t help milk-protein allergy, and effectiveness varies by dose and individual.
Informational only — not medical advice.
Body systems
Organs
Where to buy
Popular Lactase enzyme products on Amazon. Not medical advice — talk to a clinician before starting a supplement.
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Research (3)
- Effects of Prebiotic and Probiotic Supplementation on Lactase Deficiency and Lactose Intolerance: A Systematic Review of Controlled Trials Leis et al. (2020) PubMed ↗
- The effects of probiotics in lactose intolerance: A systematic review Oak et al. (2019) PubMed ↗
- Lactose intolerance Swagerty et al. (2002) PubMed ↗
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