Lactoferrin 250 mg Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Lactoferrin 250 mg against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.
Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy
Lactoferrin 250 mg is a dietary supplement by Jarrow Formulas with 1 active ingredient. Its ingredients are commonly taken for iron deficiency and anemia support, immune support, gut health.We don’t currently list a known drug interaction for its mapped ingredients — but that doesn’t guarantee none exist, so always confirm with your pharmacist.
HelloPharmacist Scorecard of Lactoferrin 250 mg by Jarrow Formulas
Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.
What’s inside
Full disclosure
This product contains one active ingredient: lactoferrin, a protein that occurs naturally in your body — especially in breast milk, saliva, and tears. Jarrow's version is derived from bovine (cow) milk.
Each capsule delivers 250 mg. The capsule itself and other inactive ingredients are microcrystalline cellulose, bovine gelatin, magnesium stearate, and silicon dioxide.
Does it work?
Moderate evidence
The evidence for lactoferrin is mixed. It's rated possibly effective for sepsis (a serious bloodstream infection) and for pregnancy-related iron deficiency.
However, it's rated likely ineffective for reducing fetal and premature infant mortality and for preventing necrotizing enterocolitis (NEC, a serious gut condition in newborns). If you're considering it for a specific condition, ask your pharmacist or doctor what the data actually supports for your situation.
How safe is it?
Well-documented data
Lactoferrin is generally well tolerated at typical doses, but long-term safety data are limited — most studies are short-term. At the dose in this product (250 mg), side effects are uncommon.
However, at much higher doses (7.2 grams daily), constipation, diarrhea, and loss of appetite have been reported. In pregnancy, safety is not fully established, so use only under medical supervision.
If you're breastfeeding, the safety of lactoferrin supplements is not well studied, even though the compound naturally occurs in breast milk — talk with your doctor or pharmacist about whether it's right for you.
Meds to double-check
No known interactions
No interactions are documented for the ingredient we could check in this product. If you take any medications, the checker on this page is still a good step — but based on our data, there are no known red flags here.
The bottom line
Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. No medication interactions are currently documented, and safety information is well characterized.
This is a single-ingredient supplement with no documented interactions with medications. It may help with sepsis or pregnancy-related iron deficiency, but evidence is limited for other uses and lacking for some conditions promoted in marketing.
If you're pregnant or breastfeeding, check with your pharmacist or doctor first — safety data are incomplete. At typical doses it's well tolerated, but we don't have enough long-term safety information.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Mar 25, 2025.
This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed
General information
Key facts about Lactoferrin 250 mg, straight from the product label.
| Brand | Jarrow Formulas |
|---|---|
| Barcode (UPC) | 790011210788 |
| Net contents | 30 Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Mar 25, 2025 |
| DSLD ID | 321954 |
| Product type | Amino Acid/protein |
| Supplement form | Capsule |
| Dietary claims / uses | Nutrient, All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Gluten Free |
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.
Supplement Facts
The label details for Lactoferrin 250 mg by Jarrow Formulas, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Lactoferrin | 250 mg | -- |
Other ingredients: Microcrystalline Cellulose, Bovine Gelatin, Magnesium Stearate, Silicon Dioxide
Tap any ingredient to jump to its full detail below.
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Suggested/Recommended/Usage/Directions
Suggested Use: Adults take 1 capsule once a day with food or as directed by your qualified healthcare professional.
Formula
Jarrow Formulas Freeze Lactoferrin (Apolactoferrin) is an important immune supporting glycoprotein that is found in breast milk. Digestion of lactoferrin by gastric pepsin liberates the immune supporting peptide lactoferrin B. One of the biological activities of lactoferrin comes from its powerful ability to facilitate iron absorption. Our lactoferrin is freeze dried to better preserve its delicate structure.
Precautions
Warning: Consult a healthcare professional before using this product if you are pregnant, nursing, under the age of 18, are taking medication or have a medical condition; if adverse reactions occur, discontinue use.
Warning: Consult a healthcare professional before using this product if you are pregnant, nursing, under the age of 18, are taking medication or have a medical condition; if adverse reactions occur, discontinue use. Keep out of the reach of children.
Contains: Milk.
Do not use if safety seal is damaged or missing.
Storage
Store in a cool, dry place.
FDA Disclaimer Statement
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
General Statements
Immune support
Formulation
Freeze dried Immune peptide Supports a healthy immune system and promotes iron absorption
Non-GMO Gluten free
IGEN Non-GMO tested
FDA Statement of Identity
Dietary Supplement
Seals/Symbols
IGEN Non-GMO tested
Brand IP Statement(s)
Copyright 2023 Jarrow Formulas
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Lactoferrin 250 mg by Jarrow Formulas label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.
View the full label (PDF)The Ingredients in Lactoferrin 250 mg by Jarrow Formulas
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 Capsule(s) Dosage formCapsule Servings per container30 Amounts shown are per serving.
Lactoferrin
No knowninteractions
Lactoferrin is an iron-binding protein found naturally in milk and other body fluids, and supplements are usually made from cow's milk or rice. It is...
Lactoferrin monograph & interactionsOther (inactive) ingredients: Microcrystalline Cellulose, Bovine Gelatin, Magnesium Stearate, Silicon Dioxide. These complete the product’s ingredient list but are not active constituents.
Lactoferrin 250 mg by Jarrow Formulas Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in Lactoferrin 250 mg. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.
Brand information
Manufacturer and brand details for Lactoferrin 250 mg, from the product label.
Jarrow Formulas
See all Jarrow Formulas products- Name
- Jarrow Formulas, Inc.
- City
- Sherman Oaks
- State
- CA
- ZipCode
- 91403
- Phone Number
- 1-866-459-4154
- Web Address
- www.Jarrow.com
Lactoferrin 250 mg by Jarrow Formulas: Common Questions
Does Lactoferrin 250 mg by Jarrow Formulas interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
What is lactoferrin and why is it in supplements?
Can I take this while pregnant?
Is this safe to take while breastfeeding?
What side effects might I get from this dose?
How long can I take this safely?
Does this help prevent premature birth complications?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Lactoferrin 250 mg is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
The Full Monographs Behind Lactoferrin 250 mg’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Lactoferrin 250 mg's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.
The 6 references behind this product’s interaction data
Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.
Lactoferrin 6 references
- Food and Drug Administration, CFSAN/Office of Food Additive Safety. Agency Response Letter GRAS Notice No. GRN 000130. 2003. Available at: http://www.cfsan.fda.gov/~rdb/opa-g130.html (Accessed 29 June 2005).
- Okada S, Tanaka K, Sato T, et al. Dose-response trial of lactoferrin in patients with chronic hepatitis C. Jpn J Cancer Res 2002;93:1063-9. PubMed
- Abu Hashim H, Foda O, Ghayaty E. Lactoferrin or ferrous salts for iron deficiency anemia in pregnancy: A meta-analysis of randomized trials. Eur J Obstet Gynecol Reprod Biol. 2017;219:45-52. PubMed
- Tarnow-Mordi WO, Abdel-Latif ME, Martin A, et al. The effect of lactoferrin supplementation on death or major morbidity in very low birthweight infants (LIFT): a multicentre, double-blind, randomised controlled trial. Lancet Child Adolesc Health. 2020 Jun PubMed
- ELFIN trial investigators group. Enteral lactoferrin supplementation for very preterm infants: a randomised placebo-controlled trial. Lancet. 2019 Feb 2;393(10170):423-433. doi: 10.1016/S0140-6736(18)32221-9.
- Lepanto MS, Rosa L, Cutone A, Conte MP, Paesano R, Valenti P. Efficacy of lactoferrin oral administration in the treatment of anemia and anemia of inflammation in pregnant and non-pregnant women: An interventional study. Front Immunol. 2018 Sep 21;9:2123. PubMed
Parts of this content are provided by the Therapeutic Research Center, LLC.
DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
© 2021 Therapeutic Research Center, LLC