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Lactoferrin Side Effects & Safety

This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer

Safety Profile

Overall safety rating: Generally Safe

Potential Side Effects

  • Very well-tolerated with an excellent safety profile
  • Rare mild GI symptoms (bloating, diarrhea) at higher doses
  • Not suitable for individuals with confirmed cow milk protein allergy
  • No significant adverse effects in clinical trials even at high doses

Drug & Supplement Interactions

  • Iron supplements — lactoferrin enhances iron absorption; may need to adjust iron supplement dose
  • Antibiotics — potential synergistic antimicrobial effects; lactoferrin may enhance antibiotic activity
  • Antifungals — lactoferrin has additive antifungal effects and may enhance azole antifungal efficacy

Maximum Dose

Do not exceed: Clinical studies have used up to 3000mg/day without serious adverse effects

Full Lactoferrin Guide

References

  1. (). Lactoferrin: a modulator of immune and inflammatory responses. Cellular and Molecular Life Sciences. DOI
  2. (). Oral administration of lactoferrin increases hemoglobin and total serum iron in pregnant women. Biochemistry and Cell Biology. DOI