Protein
Lactoferrin
Also known as: Apolactoferrin, Bovine lactoferrin, LF
Iron-binding protein from milk with antimicrobial, antiviral, and immune-modulating properties. Supports gut and systemic immunity.
Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.
Common questions
How much Lactoferrin should I take?
The typical range is 100-300mg daily. Daily for immune support
When should I take Lactoferrin?
Empty stomach or between meals. Empty stomach may be optimal.
Which form of Lactoferrin is best?
Bovine lactoferrin — Most common, well-studied. Other forms in the catalog: Apolactoferrin.
Is Lactoferrin safe?
Commonly reported: Rare, well tolerated, Mild GI upset possible. Serious warnings: None significant. Safe
Which Lactoferrin supplement scores highest?
Jarrow Formulas Lactoferrin, at 86/100. Scored on dose accuracy, form, label transparency and third-party testing — no brand pays to be listed or ranked.
Primary uses
- Antimicrobial
- Immune modulation
- Iron regulation
- Gut immunity
How it works
- Binds iron, starving pathogens
- Direct antimicrobial activity
- Modulates immune cell activity
- Enhances gut barrier function
Dosage
- Typical range
- 100-300mg daily
- Timing
- Empty stomach or between meals
- With food
- Empty stomach may be optimal
- Duration
- Daily for immune support
- Special populations
- Those with recurrent infections, gut issues
Forms
- Bovine lactoferrin
- Apolactoferrin
Safety
Common side effects
- Rare, well tolerated
- Mild GI upset possible
Contraindications
- Milk/dairy allergy (bovine source)
Products containing Lactoferrin
Top-scoring supplements in our catalog that list Lactoferrin on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.
Evidence notes
Promising research, especially for gut and immunity
Grade B: Some human trials support key claims; further confirmation needed.
Related in Protein
Check a full stack
Formulate's free interaction checker lets you paste in any combination of supplements and medications at once — every pairing flags severity, timing, and cited evidence.
Open the checkerWhere does Lactoferrin fit in your stack?
Answer two questions and get a stack graded on research — every ingredient scored on the evidence behind it, not the marketing.
Build my stack2 questions · free · no account needed to start
Also on iPhone — get the free app
Evidence-based supplement guides, no spam
We send a short digest when new guides drop — nothing else. No affiliate pushes, no sponsored content, unsubscribe anytime.
Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.