Review Note

**Lactase Replacements
• Enzyme breaks down lactose --> {{c1::galactose + glucose}}
• Use: {{c1::prevention of gas, bloating, or diarrhea related to digesting dairy}}
• Dose: {{c2::3000–18,000 units orally}} at first bite of food or drink containing lactose
• Enzyme produced through {{c2::extraction from yeasts and molds}}
• Avoid in patients with {{c2::allergy to these fungi}}
• Lactase persistence trait: {{c3::genetic modification prominent in cultures that practice domestication of cattle}}
• {{c3::90%}} European; {{c3::5 – 20%}} Africans{{c3::; 1%}} Asians