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. The dose range is defined in FCC ALU (3,000–9,000 per dairy meal; EFSA claim threshold 4,500) — a bare mg figure is not converted and is left unscored rather than guessed.
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
3000–9000
alu
FCC lactase units (ALU) per dairy-containing meal: OTC products range 3,000 (regular) to 9,000 (ultra) ALU per dose; EFSA's 2009 authorised claim requires ≥4,500 FCC units per serving. A mg figure without ALU on the label cannot be scored.
Clinical evidence
Limited clinical evidence. Established for lactose intolerance symptom relief; potency measured in ALU activity units, not mg
Reference