What is the recommended dose of Lactoferrin?

- **Look for:** Bovine lactoferrin (bLf); low-heat processed (preserves iron-binding activity); ≥95% purity; 100-250mg per capsule; enteric-coated for intestinal delivery - **Avoid:** Heat-denature...

Is Lactoferrin safe to take daily?

Lactoferrin is rated "Generally Safe" based on clinical evidence. Always consult your healthcare provider before starting any supplement.

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Ingredient Research

Graded against 173,636 supplements + 177 published clinical interactions, sourced from PubMed, FDA CAERS, openFDA, NIH DSLD

Lactoferrin

MODERATE EVIDENCESupplementLast updated

AVELOR SUMMARY

Lactoferrin is a multifunctional glycoprotein found in breast milk, tears, saliva, and colostrum — the immune system's Swiss Army knife. It binds iron with 300x the affinity of transferrin, starving pathogenic bacteria of the iron they need to grow. Our research shows it's one of the only supplements that genuinely improves iron status in anemia WITHOUT causing the GI side effects of iron supplements (constipation, nausea, black stool). A 2009 meta-analysis found lactoferrin increased hemoglobin by the same amount as ferrous sulfate with significantly better GI tolerance. It also has direct antimicrobial (antibacterial, antifungal, antiviral), anti-inflammatory, and prebiotic effects.

WHAT IT DOES

Lactoferrin has five distinct mechanisms: (1) iron sequestration — binds free iron with extreme affinity (Kd = 10⁻²⁰), making iron unavailable to iron-dependent pathogens (bacteriostatic); (2) direct membrane disruption — lactoferricin peptide (released during digestion) binds to bacterial LPS, disrupting Gram-negative membranes (bactericidal); (3) hepcidin modulation — reduces hepcidin (the hormone that blocks iron absorption), increasing intestinal iron uptake WITHOUT the oxidative stress caused by ionic iron supplements; (4) immune modulation — activates macrophages, NK cells, and dendritic cells; promotes Th1 response; (5) prebiotic — promotes Bifidobacterium growth via bifidogenic factors. The iron absorption mechanism explains why lactoferrin improves anemia as well as iron supplements: it downregulates hepcidin, increasing iron absorption from dietary sources.

OPTIMAL DOSAGE

Look for: Bovine lactoferrin (bLf); low-heat processed (preserves iron-binding activity); ≥95% purity; 100-250mg per capsule; enteric-coated for intestinal delivery
Avoid: Heat-denatured lactoferrin (>70°C); very low doses (<50mg); products not specifying bovine vs recombinant source
Minimum effective dose: 100mg/day for iron status; 200mg for immune
Third-party tested brands: Jarrow Formulas, Life Extension, Symbiotics, NOW Foods

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SAFETY PROFILE

Critical Interactions (Do Not Combine Without Medical Supervision)

No critical interactions identified.

Moderate Interactions (Monitor Closely)

Theoretical/Low-Risk Interactions

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Independently graded against 173,636 indexed supplements with 177 published clinical interactions, sourced from PubMed, FDA CAERS, openFDA, and NIH DSLD | Last updated:

Not medical advice. Based on published clinical research and systematic reviews.

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