Lactoferrin
Iron-binding protein with powerful antimicrobial and immune-balancing properties.
Also known as: Apolactoferrin • Bovine Lactoferrin
Overview
Lactoferrin is a glycoprotein found in milk, tears, and other bodily secretions. It plays a crucial role in the innate immune system by binding to iron, which deprives bacteria of a key nutrient needed for growth, and by directly modulating immune cell activity.
Key Benefits
Inhibits Pathogen Growth
Binds to free iron, making it unavailable to pathogenic bacteria, viruses, and fungi that require it for replication.
Antiviral Activity
Can block viruses from entering host cells and enhance the body's antiviral response.
Modulates Immune Function
Can both stimulate the immune system when needed and reduce inflammation, helping to maintain immune balance.
Dosage & How to Take
200-400 mg per day is a common dosage for general immune support.
| Purpose | Dose | Notes |
|---|---|---|
| Daily Immune Maintenance | 200 mg/day | Often taken in divided doses. |
| Acute Infection | 400-600 mg/day | Higher doses may be used for short-term support. |
Best Time to Take
Take at least 30 minutes before meals for optimal absorption.
With or Without Food
Should be taken without food, as proteins in food can interfere with its function.
Forms & Bioavailability
| Form | Absorption | Best For | Notes |
|---|---|---|---|
| Bovine Lactoferrin | Good | General immune support | Most common form, derived from cow's milk. |
| Apolactoferrin | High | Maximum iron-binding capacity | The iron-free form, which may have stronger antimicrobial effects. |
Side Effects & Safety
Common
- Extremely well-tolerated.
Rare
- High doses (>1g/day) may cause digestive upset like cramping or diarrhea.
Contraindications
- Individuals with a severe milk allergy should avoid it.
Interactions
Scientific Research
The effect of lactoferrin on the immune system
Lactoferrin demonstrates a wide range of effects on the immune system, including antibacterial, antiviral, and anti-inflammatory properties.
Food Sources
Products With Lactoferrin
2 products in our database contain this ingredient
Frequently Asked Questions
Medical Disclaimer
This content is for educational and informational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen, especially if you have pre-existing health conditions or are taking medications. The statements on this page have not been evaluated by the Food and Drug Administration.