About Lactase
Enzyme that hydrolyzes lactose into glucose and galactose. Well-established for symptom relief in lactose intolerance when taken with dairy. Potency is properly expressed in FCC ALU, not mg, so a mg amount alone is an incomplete measure of dose.
What Lactase supports
- Helps digest lactose in dairy
How much Lactase to take
The RDA prevents deficiency. The effective range is what clinical trials used to actually move the outcome.
Effective
50–300
mg
Lactase is dosed in FCC ALU (acid lactase units), not mg — typical OTC products provide 3,000-9,000 ALU per serving. The mg range here is nominal so the product resolves; activity-unit dosing is not captured by the mg dose-quality curve.
Clinical evidence
Limited clinical evidence. Established for lactose intolerance symptom relief; potency measured in ALU activity units, not mg
Reference