What is lactoferrin and why is it essential for the body?
Lactoferrin is a protein naturally present in breast milk, saliva, tears and mucous secretions. Particularly abundant in colostrum, it plays a key role in immunity, iron regulation and protection against infection.
Endowed with powerful antimicrobial, antiviral, anti-inflammatory and immunomodulatory properties, it is used for both prevention and support in the fight against various ailments. Its action on iron absorption also makes it an ally of choice for those prone to iron deficiency or suffering from disturbed iron metabolism.
What are the benefits of lactoferrin for immunity, digestion and iron regulation?
Lactoferrin is recognized above all for its essential role in strengthening the immune system. It acts by stimulating the body's natural defenses and helping it to fight bacterial, viral and fungal infections. By binding to free iron in the blood, it deprives pathogens of the nutrient essential to their proliferation, thus limiting their development.
Its antibacterial action is particularly effective against bacteria such as E. coli, Staphylococcus aureus and Helicobacter pylori, implicated in various digestive and systemic infections. It acts by piercing their cell membranes, rendering them harmless to the body.
On the antiviral front, lactoferrin attacks viruses by preventing their attachment to host cells. It has demonstrated notable efficacy against several types of virus, including those responsible for respiratory, gastrointestinal and skin infections.
In addition to its protective role, lactoferrin improves iron absorption by facilitating its transport to cells, while limiting its oxidation. Unlike conventional iron supplements, which are often poorly tolerated and can cause digestive problems, lactoferrin enables smoother, more efficient assimilation, reducing the risk of fatigue, anaemia and iron deficiency.
On the digestive front, it promotes optimal balance of the intestinal microbiota by nourishing good bacteria and limiting the proliferation of pathogens. It also helps repair the intestinal wall, making it an interesting supplement for people suffering from permeable bowel syndrome or inflammatory bowel disease.
Finally, its anti-inflammatory effect makes it a valuable ally in reducing chronic inflammation and protecting tissues from oxidation. In particular, it is being studied for its potential in the prevention of neurodegenerative and cardiovascular diseases.
How should lactoferrin be consumed to reap its full benefits?
Lactoferrin is available as a dietary supplement in capsule or powder form, often combined with probiotics or collagen, to optimize its effects on immunity and intestinal health.
The recommended dosage generally varies between 100 and 300 mg per day, depending on needs and the desired objective. For enhanced immune action, daily intake on an empty stomach is recommended, as this promotes absorption and effectiveness.
In cases of iron deficiency, it can be used as a supplement to an iron-rich diet (red meat, legumes, spinach) to improve assimilation without the usual side effects of conventional iron supplements.
For digestive support and intestinal microbiota modulation, lactoferrin is often combined with specific probiotic strains to maximize its effects.
Does lactoferrin have any side effects or contraindications?
Lactoferrin is generally well tolerated, with no major adverse effects at recommended doses. However, at high doses, it may cause mild digestive disorders, such as bloating or transient diarrhea.
It is not recommended for people suffering from hemochromatosis, a disease characterized by excessive iron accumulation in the body. What's more, although lactoferrin can help regulate immunity, people undergoing immunosuppressive treatment should consult a health professional before taking any supplements.
Finally, pregnant and breast-feeding women are always advised to seek medical advice before introducing a new supplement into their routine.
How to choose quality lactoferrin?
To benefit fully from its effects, it's important to choose high-quality lactoferrin from natural, easily-absorbed sources. Here are the essential criteria to consider:
