No known drug interactions for the matched ingredients — not a guarantee none exist. Check your meds →
Dietary supplement

Lactoferrin Caps Ingredients & Drug Interactions

by Life Extension

Capsule Category: Amino Acid/protein
No known interaction
The interaction bottom line No known interaction

Lactoferrin Caps is a dietary supplement by Life Extension 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 Caps by Life Extension

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.

From our pharmacy team — supplement deep dive

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains one active ingredient: lactoferrin, a naturally occurring protein found in milk and other body fluids that plays a role in immune function and iron transport. The capsule also contains inactive ingredients (microcrystalline cellulose, cellulose, silica, and stearic acid) that serve as binders and fillers.

Does it work?

Moderate evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed

This product doesn't appear to be marketed for a specific use, so we graded Lactoferrin's overall clinical evidence instead.

Moderate

Some clinical evidence supports Lactoferrin for:

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.
  • Since the label doesn't commit to one use, we graded the ingredient's overall clinical evidence instead.
  • On file: Pregnancy-related iron deficiency — rated "Possibly Effective" (Natural Medicines).
  • On file: Sepsis — rated "Possibly Effective" (Natural Medicines).

The evidence for lactoferrin is mixed and limited. It's rated possibly effective for sepsis and pregnancy-related iron deficiency, meaning some evidence exists but it's not conclusive.

For fetal and premature infant mortality and necrotizing enterocolitis — a serious intestinal condition in newborns — the evidence suggests it's likely ineffective. The data we hold doesn't establish effectiveness for other uses.

The evidence, ingredient by ingredient Lactoferrin

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Lactoferrin from bovine (cow) and recombinant sources is generally well tolerated at typical doses when taken by mouth. However, long-term safety data are limited, so we don't have a complete picture of safety beyond the short term.

At higher doses of 7.2 grams daily, some people have reported constipation, diarrhea, loss of appetite, fatigue, and chills. In newborns, rare cases of jaundice, bloody stools, bowel obstruction, and intestinal perforation have been reported.

If you're pregnant or breastfeeding, the safety data are not fully established — lactoferrin does occur naturally in breast milk, but we don't have solid data on supplement safety during lactation, and pregnancy use should only happen under medical supervision.

Side effects, ingredient by ingredient Lactoferrin

Meds to double-check

No known interactions
Known Interaction Concern · database check
No known interactions

No medication interactions are currently documented for the matched ingredients — that isn't a guarantee none exist.

Why this rating?
  • None of the 1 matched ingredient has a documented medication interaction on file.

No interactions are documented in our data for the ingredients we could check. That doesn't mean none exist, so if you're on any regular medications, it's still smart to mention this supplement to your pharmacist.

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence behind its ingredients' uses. No medication interactions are currently documented, and safety information is well characterized.

Lactoferrin might be worth considering if you're interested in immune support or have been advised by a doctor to address pregnancy-related iron deficiency, though the evidence is limited. Keep typical doses in mind — higher amounts increase the risk of stomach upset.

If you're pregnant, breastfeeding, or on any medications, talk with your pharmacist or doctor before starting.

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 Apr 24, 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

At a glance

General information

Key facts about Lactoferrin Caps, straight from the product label.

Brand Life Extension
Barcode (UPC) 737870168164
Net contents 60 Vegetarian Capsule(s)
Market status On market
Date entered into DSLD Apr 24, 2025
DSLD ID 328508
Product type Amino Acid/protein
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Gluten Free
From the label
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 Caps by Life Extension, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
Servings per container
60
UPC/BARCODE
737870168164
IngredientAmount% DV
Lactoferrin300 mg--

Other ingredients: Microcrystalline Cellulose, Cellulose, Silica, Stearic Acid

Tap any ingredient to jump to its full detail below.

Label statements
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.
General Statements

Scan for product info

Precautions

Read the entire label and follow the directions carefully.

Warnings: Keep out of reach of children.

Do not exceed recommended dose. Do not purchase if outer seal is damaged.

Consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.

Contains milk.

To report a serious adverse event or obtain product information, contact 1-866-280-2852.

Suggested/Recommended/Usage/Directions

Directions: Take one (1) capsule daily, or as recommended by a healthcare practitioner.

1 Daily

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.

Formulation

Gluten free Non GMO LE Certified

Supports a healthy immune system

Seals/Symbols

Non GMO LE Certified

FDA Statement of Identity

Dietary Supplement

Storage

Store tightly closed in a cool, dry place.

See for yourself

Lactoferrin Caps by Life Extension label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

What’s inside

The Ingredients in Lactoferrin Caps by Life Extension

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 container60 Amounts shown are per serving.

Lactoferrin

No known
interactions
300 mg per serving Form: Bovine Whey

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 & interactions

Other (inactive) ingredients: Microcrystalline Cellulose, Cellulose, Silica, Stearic Acid. These complete the product’s ingredient list but are not active constituents.

Interaction report

Lactoferrin Caps by Life Extension Drug Interactions

We don’t currently list any known drug interactions for the mapped ingredients in Lactoferrin Caps. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.

The maker

Brand information

Manufacturer and brand details for Lactoferrin Caps, from the product label.

Life Extension

See all Life Extension products
Name
Quality Supplements and Vitamins, Inc.
City
Ft. Lauderdale
State
FL
ZipCode
33309
Phone Number
1-866-280-2852
Web Address
LifeExtension.com
Pharmacist Counseling Corner

Lactoferrin Caps by Life Extension: Common Questions

Does Lactoferrin Caps by Life Extension interact with any medications?
We do not currently list a known interaction for the mapped ingredients in Lactoferrin Caps. This does not guarantee none exist, so confirm with your pharmacist.
How can one product interact with so many drugs?
Lactoferrin Caps contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
What is lactoferrin, and where does it come from?
Lactoferrin is a natural protein found in milk and body fluids that helps support immune function and iron transport. This product uses bovine (cow) lactoferrin or recombinant versions created in a lab. It's generally well tolerated at typical doses.
Can I take this if I'm pregnant?
Some studies have looked at lactoferrin in pregnancy, but safety is not fully established. If you're pregnant and interested in this supplement, use it only under medical supervision — talk with your obstetrician or pharmacist first.
Is it safe to take this while breastfeeding?
Lactoferrin occurs naturally in breast milk, but we don't have solid data on the safety of supplements while breastfeeding. It's worth discussing with your doctor or pharmacist before you start.
What side effects might I experience?
At typical doses, lactoferrin is generally well tolerated. At higher doses of 7.2 grams daily, some people report constipation, diarrhea, loss of appetite, fatigue, and chills. Stomach upset is less common than with some other iron sources.
Does lactoferrin really work for preventing serious infections in newborns?
The evidence suggests lactoferrin is likely ineffective for preventing fetal and premature infant mortality and necrotizing enterocolitis. If you're considering it for a newborn, talk with your pediatrician about what the data actually supports.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if Lactoferrin Caps is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.

Lactoferrin Caps label
Go deeper

The Full Monographs Behind Lactoferrin Caps’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Sources

Sources & How We Checked

Lactoferrin Caps'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.

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
  1. 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).
  2. 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
  3. 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
  4. 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
  5. 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.
  6. 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

See these in context on the Lactoferrin monograph →

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

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