Protocol · Digestive Health
Lactose Intolerance Management Protocol
Lactase Enzyme and Probiotics (Lactobacillus strains) are the core of this stack, with 2 supporting supplements. Each row gives the amount the protocol lists and the grade our evidence database holds for that supplement in Lactose Intolerance Management.
We are re-verifying the studies cited on protocol pages; only confirmed citations are shown.
The stack
4 supplements · 1 graded · 1 graded A
| Grade | Supplement | Amount listed | Why it’s in the stack | Evidence on file | Shop |
|---|---|---|---|---|---|
| Primary stackThe core of this protocol | |||||
| Lactase Enzyme | Amount listed: 3,000–9,000 FCC units before dairy consumption | Provides the enzyme needed to digest lactose; take before consuming dairy
| Grade A for Bloating66 people | ||
| Probiotics (Lactobacillus strains) | Amount listed: 10–20 billion CFU daily (lactose-digesting strains) | Some strains produce lactase; may improve lactose digestion over time | Not graded yet | ||
| Supporting stackListed as additions to the core | |||||
| Calcium | Amount listed: 1,000–1,200 mg daily (diet + supplement) | Dairy avoidance can lead to calcium deficiency; supplementation important | Not graded yet | ||
| Vitamin D | Amount listed: 2,000–4,000 IU daily | Works with calcium for bone health; often fortified in dairy products | Not graded yet | ||
Shop the evidence-backed picks
The collection holds the supplements we grade A or B for its theme, in third-party tested products where the catalog has them. It opens in our Fullscript store. You can look through it without signing in; Fullscript asks for a free account to order.
Or shop one supplement
The supplement in this protocol graded A or B. Each opens third-party tested products, matched to the dose above where we can.
- Grade A
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How this protocol works
In plain language
Lactose intolerance occurs when your body doesn't produce enough lactase, the enzyme needed to digest lactose (milk sugar). When lactose isn't digested, it ferments in the gut, causing uncomfortable symptoms.
SYMPTOMS:
- Bloating
- Gas
- Diarrhea
- Stomach cramps
- Nausea
- Usually occur 30 min to 2 hours after eating dairy
TYPES:
- Primary: Most common; lactase production decreases after childhood (genetic)
- Secondary: From gut damage (infection, celiac, Crohn's) - may be temporary
- Congenital: Very rare; present from birth
MANAGING LACTOSE INTOLERANCE:
1. Know Your Tolerance:
- Most people can tolerate some lactose
- Symptoms depend on amount consumed
- Tolerance varies by individual
2. Choose Lower-Lactose Options:
- Hard/aged cheeses (cheddar, parmesan) have less lactose
- Yogurt (bacteria digest some lactose)
- Lactose-free milk and dairy products
- Plant-based alternatives (soy, almond, oat milk)
3. Use Lactase Supplements:
- Take before eating dairy
- Different strengths available
- May not eliminate all symptoms
4. Ensure Calcium Intake:
- Dairy restriction can lead to calcium deficiency
- Non-dairy calcium sources: fortified foods, leafy greens, canned fish
- Supplement if needed
Lactase supplements* allow you to eat dairy more comfortably.
Probiotics* may help improve lactose digestion over time.
Calcium and vitamin D* supplementation if dairy intake is limited.
Expected timeline: Lactase works immediately when taken before dairy. Probiotics may take weeks to show benefit.