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Curated, not stocked.
Lactoferrin is not a mainstream supplement, which is precisely why it earns its place here. The evidence base for its role in immune modulation and iron handling is more substantive than most products in the immunity aisle. Jarrow Formulas presents it simply — one ingredient, clearly labelled — which suits a doctor-curated context where transparency matters. We recommend it for targeted use rather than as a general daily multivitamin-style addition.
About this product
Lactoferrin
Lactoferrin by Jarrow Formulas is a single-ingredient supplement providing lactoferrin, a naturally occurring iron-binding glycoprotein found in colostrum and human milk. In the body, lactoferrin plays a role in innate immunity and iron metabolism — it binds free iron in a way that may limit the availability of iron to pathogens, and it is studied for its antimicrobial and immune-modulating properties.
This supplement suits people looking to support immune resilience, particularly during periods of higher susceptibility — frequent illness, recovery from antibiotics, or times of elevated physiological stress. It may also be relevant for those with suboptimal iron absorption, since lactoferrin supports the regulated uptake of iron in the gut without the gastrointestinal side effects often associated with iron salt supplements.
Lactoferrin is derived from bovine milk and shares significant structural homology with human lactoferrin, which is why bovine lactoferrin is the form most commonly used in research. It is generally well tolerated. Those with dairy protein allergy should take care, as the source is milk-derived.
Jarrow Formulas is a long-standing US supplement brand with a reputation for clean, well-labelled formulations. The ingredient list here is transparent and focused — one active, no unnecessary additions — which makes it straightforward to assess and to stack with other supplements without overlap or interaction concerns.
What it does
Benefits
- 01
May support innate immune function during periods of stress
- 02
Studied for antimicrobial activity against common pathogens
- 03
Supports regulated iron absorption in the gut
- 04
Single-ingredient formula — easy to assess and stack
- 05
Relevant for recovery periods or frequent illness
Get the most from it
How to use
Take one capsule daily, as directed on the packaging. Lactoferrin is typically taken with or without food, though taking it away from high-dose iron supplements may preserve its iron-binding activity. Follow the guidance on your packaging for any specific timing recommendations.
What's inside
Ingredients
View full ingredient list
Lactoferrin 250mg
Common questions
Frequently asked
What is lactoferrin and where does it come from?
Lactoferrin is an iron-binding glycoprotein found naturally in milk and other secretions. This product uses bovine lactoferrin, derived from cow's milk, which shares a high degree of structural similarity with the lactoferrin found in human breast milk and is the form most widely studied in research.
Is this suitable for people with a dairy allergy?
Lactoferrin is a milk-derived protein, so it is not suitable for anyone with a confirmed dairy protein allergy. If you have a lactose intolerance rather than a milk protein allergy, the risk is lower, but it is worth checking with your doctor before use.
Can I take this alongside an iron supplement?
It is generally advisable to separate lactoferrin from high-dose iron supplements, as lactoferrin binds free iron — taking them together may reduce the availability of supplemental iron. Space them a few hours apart and discuss with your clinician if you are being treated for iron deficiency.
How long before I might notice a difference?
Lactoferrin is not a fast-acting stimulant; its effects on immune function and iron metabolism are more gradual. Most research looks at outcomes over several weeks of consistent use. It is best thought of as a background-support supplement rather than something with an immediate, noticeable effect.
Who is most likely to benefit from taking lactoferrin?
People who experience frequent infections, are recovering from a course of antibiotics, or have difficulty absorbing iron through conventional iron supplements may find lactoferrin particularly relevant. It is also studied in the context of gut health and inflammation, though the evidence is stronger for immune and iron-related applications.
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