Lactase

Lactase is an enzyme that helps break down lactose, aiding individuals who are lactose intolerant to digest dairy products more comfortably.

Lactase is an enzyme that breaks down lactose, the sugar found in milk. It is used by individuals who are lactose intolerant to help digest dairy products.

Supplemental lactase allows those with lactose intolerance to enjoy milk, cheese, and other dairy foods without discomfort like bloating or gas.

Lactase is used to improve dairy digestion. It is taken with meals containing lactose and is considered safe with no known side effects.

Other names & forms of Lactase supplement : lactase enzyme, lactose digestion enzyme, lactase supplement

Possible Benefits

By splitting lactose efficiently, Lactase provides clear digestive comfort benefits:

  • Supports Digestive Health by reducing bloating, gas, and discomfort associated with lactose consumption.
  • Helps maintain General Health by improving nutrient absorption from dairy sources.

Side Effects

Lactase enzyme helps digest lactose, but some users may notice mild effects as gut bacteria adapt. Watch for:

  • Occasional gastrointestinal upset, gas, bloating, or cramps
  • Possible diarrhea with high doses
  • Temporary mild headache or dizziness
  • Rare allergic reactions, rash or itching
  • Occasional nausea if taken without dairy

Interactions

Possible interactions include:

  • Lactase-containing foods: Lactase helps digest lactose; when consumed with dairy enzymes, monitor for digestive balance but no major interactions.

Precautions

Before taking Lactase enzyme supplements, confirm none of the following apply to you. If they do, consult your healthcare provider:

  • Individuals with dairy allergies: Lactase acts on lactose, not dairy proteins; avoid if allergic
  • People with galactosemia: Contraindicated; cannot metabolize galactose
  • Those with small intestinal bacterial overgrowth (SIBO): May exacerbate gas production; use with caution
  • Pregnant or breastfeeding women: Generally safe; avoid unnecessary high-dose use
  • Patients scheduled for surgery: No specific discontinuation required unless advised by clinician

Studies

These studies provide scientific insights into Lactase benefits:

A 2011 randomized, double-blind trial in 45 lactose-intolerant adults found 3,000 FCC units lactase with each dairy meal reduced hydrogen breath test peaks by 65% versus placebo and significantly alleviated bloating and cramps.

A 2018 crossover study showed that a single 9,000 FCC unit dose prevented symptoms and malabsorption in 20 subjects consuming 500 mL milk, with no adverse events.

No RCTs

have evaluated long-term daily lactase supplementation on gut microbiota composition or digestive health in diverse populations.

Disclaimer: This page is for educational purposes and does not replace medical advice. If you're pregnant, have a condition, or take medication, speak with a qualified professional.

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