Is lactoferrin the same as colostrum?

No. Lactoferrin is one protein found inside colostrum. Colostrum is the whole bovine first milk, and its main bioactives are IgG and IgA immunoglobulins, plus growth factors, proline-rich polypeptides and lactoferrin. Buying colostrum gets you some lactoferrin, but the amount is not standardized on the label, so you cannot use it to hit a lactoferrin dose.

Which one is better, lactoferrin or colostrum?

Lactoferrin scores 7.3 and colostrum 6.8, but the use case decides it. Lactoferrin wins on iron handling and hemoglobin (7.0 against 1.0 on metabolic health), acne (6.8 against 3.5) and inflammation markers. Colostrum wins on athlete respiratory symptoms and gut permeability, where the human trials sit. No study has ever compared the two directly.

Can I take lactoferrin and colostrum together?

Yes, and it is not as redundant as it sounds, because colostrum does not standardize its lactoferrin content. The honest question is cost: running both is $85 to $130 a month for two dairy-derived products. Make the case for each one separately. If you cannot name a target for each, drop one. Both share the same cow's milk allergy contraindication, so stacking them adds no new allergy risk but no protection either.

Is 1 to 3 grams of colostrum a day enough?

Probably not. Most commercial and social-media colostrum protocols recommend 1 to 3 g a day, which is below the 10 to 20 g a day used for almost every adult immune and gut-barrier endpoint in the literature. Jones 2014 used 20 g a day. If budget forces a lower dose, 5 to 10 g a day is a more honest compromise than 1 g.

Who should not take either one?

Anyone with a cow's milk allergy, and anyone who has had dairy-triggered hives, swelling or breathing symptoms. Both are bovine milk products, so there is no safe substitution between them. Pregnancy and lactation need clinician guidance on both. Lactoferrin additionally rules out Alpha-Gal Syndrome and unmonitored hemochromatosis or iron overload. Colostrum additionally rules out hormone-sensitive cancer without oncology clearance and severe lactose intolerance at 20 g a day.

Does either one prevent colds in a normal healthy adult?

The honest answer is that neither has proven it in sedentary healthy adults. Colostrum's respiratory evidence comes from exercise-stressed adults and athletes, so applying it to a desk job is extrapolation. Berthon 2022 found lactoferrin's adult respiratory prevention signal mixed to null, and Glowka 2020 found no colostrum effect on common immune biomarkers across 10 RCTs.

Should I give either one to my baby?

Not on your own. Both carry pediatric subratings that look encouraging, lactoferrin at 8.0 and colostrum at 4.0, and the large trials do not support routine use. ELFIN found late-onset infection of 29% against 31% in 2,203 very preterm infants, LIFT found no primary composite benefit, and Cochrane rated the certainty low to very low. These are clinician-run NICU protocols, not home supplements.

Is colostrum a problem for drug-tested athletes?

Possibly. Colostrum itself is not a named WADA-prohibited substance, but WADA's 2013 statement is explicit that IGF-1 is prohibited, that natural products including colostrum can contain small IGF-1 quantities, and that athletes use them at their own risk. Lactoferrin, as a single purified protein, carries less of that ambiguity.

Head-to-Head Comparison

Lactoferrin vs Colostrum: Which Is Better for Immunity?

Should I take lactoferrin or colostrum?

Reviewed 09/07/2026

Lactoferrin scores 7.3 against colostrum's 6.8, and lactoferrin is one protein inside colostrum. Buy lactoferrin when iron handling, acne or H. pylori is the target, at $25 to $50 a month. Buy colostrum instead when gut barrier repair or athlete respiratory symptoms are what you care about, at $60 to $80 a month.

Lactoferrin 7.3, colostrum 6.8. Lactoferrin is a component of colostrum, so this is a targeted dose against a whole matrix, not two rival products.
Colostrum powder standardizes IgG, usually 20 to 30 percent by weight. It does not standardize lactoferrin, so you cannot dose lactoferrin through colostrum.
Colostrum owns the athlete evidence: Jones 2016 found 44% fewer upper respiratory symptom days across five trials in exercising adults.
Lactoferrin owns the targeted clinical evidence: H. pylori eradication as an adjunct, acne with zinc and vitamin E, and hemoglobin in low-Hb populations.
Cost runs $25 to $50 a month for lactoferrin against $60 to $80 for colostrum at 20 g a day. Both figures are extracted from the reports, not estimated.
Cow's milk allergy rules out both. They come from the same source material, so an allergy to one is an allergy to the other.

At a Glance

Option B

Colostrum

6.8 / 10 Worth trying

Upside

Efficacy 3.0
Breadth 2.8
Evidence 3.7
Speed 2.5
Durability 1.5
Bioindividuality 2.5

Downside

Safety Risk 1.5
Side Effects 1.5
Cost 2.5
Effort 1.5
Opportunity Cost 1.5
Dependency 1.0
Reversibility 1.0

Best at:

Immune Function 7.0
Gut Health 6.5
Recovery Repair 5.0
Anti Inflammatory 4.0

Whole bovine first-milk powder, immunoglobulin-led. Contains lactoferrin among many bioactives. BioHarmony 6.8, worth trying.

Read full BioHarmony report →

Head-to-Head Verdict

Use Case	Winner	Rationale
Immune Function	Colostrum	The subratings say lactoferrin 7.5 against colostrum 7.0, and the trials say the opposite. Jones 2016 pooled five RCTs in 152 exercising adults and found 44% fewer upper respiratory symptom days and 38% fewer episodes. Lactoferrin's adult respiratory prevention evidence is mixed to null (Berthon 2022). Take the trial over the 0.5-point gap.
Gut Health	Tie	Call this even. The two sides answer different gut questions. Colostrum has the permeability data: Hajihashemi 2024 pooled 10 RCT articles showing reduced lactulose ratios, and Playford 2001 showed it blunts NSAID-driven permeability. Lactoferrin has the infection data: Hablass 2021 in 400 patients and Di Mario 2006 in 402 improved H. pylori eradication as an adjunct. Subratings 7.4 against 6.5.
Skin Beauty	Lactoferrin	Lactoferrin 6.8 against colostrum 3.5, and the trials back the gap. Chan 2017 randomized 168 subjects to lactoferrin with zinc and vitamin E and saw total lesion reductions by week 2 peaking around week 10. Kim 2010 showed acne and sebum improvements over 12 weeks. Colostrum has no equivalent skin trial. Note that Chan 2017 tested a stack, not lactoferrin alone.
Metabolic Health	Lactoferrin	Lactoferrin 7.0 against colostrum 1.0, which is the widest defensible gap here. Christofi 2024 pooled 19 randomized trials favoring lactoferrin for hemoglobin in low-hemoglobin populations, though heterogeneity was very high. Colostrum's 1.0 means nothing has been scored here, not that it failed. If iron handling is your reason for buying, colostrum is not the product.
Anti Inflammatory	Lactoferrin	Lactoferrin 7.0 against colostrum 4.0. Berthon 2026 randomized 103 healthy older adults to 600 mg a day and found lower virus-stimulated IL-6 and shifted T-cell subsets after four weeks. That is a marker change, not an infection-outcome win, and the report says so. Colostrum's cytokine modulation is mechanistic, carried by proline-rich polypeptides.
Prenatal	Lactoferrin	Lactoferrin 8.2 against colostrum 2.0, on the iron and hemoglobin evidence in a population where iron deficiency is common. Read the caveat first: therapeutic-dose lactoferrin in pregnancy is a listed contraindication without clinician guidance, and so is colostrum. This row says which molecule a doctor would reach for, not that you should self-prescribe.
Pediatric	Tie	The subratings read lactoferrin 8.0 against colostrum 4.0. The large trials do not support that. ELFIN randomized 2,203 very preterm infants: late-onset infection 29% against 31%, adjusted RR 0.95. LIFT found no primary composite benefit, and Cochrane rated the certainty low to very low across 5,425 infants. Neither is a home protocol.
Recovery Repair	Colostrum	Subratings and trials point opposite ways again: lactoferrin 6.0 against colostrum 5.0, but every human recovery trial here sits on the colostrum side. Marchbank 2011 showed colostrum truncated the gut permeability rise from heavy exercise in a 12-person crossover. Davison 2021 frames the benefit as training continuity. Lactoferrin has no equivalent.

Cost Comparison

Intervention	Monthly Cost	Notes
Lactoferrin	$25 to $50	Extracted from the report, priced 2026-09-07, ordinary retail channel. The figure covers 250 to 300 mg a day of apolactoferrin from legitimate retail brands, which is exactly the general immune resilience protocol dose. It is a real read of retail pricing, not an estimate.The catch is underdosing. True milligram content varies widely between products, so a cheap bottle can raise your real cost per active gram.
Colostrum	$60 to $80	Extracted from the report, priced 2026-09-07, ordinary retail channel. The report prices 10 to 20 g a day at $30 to $80 a month, and the athletic immune support protocol runs 20 g a day, which sits at the top of that band. Capsules cost more per gram and create a 20 to 40 capsule daily burden at clinical doses, so powder is the honest price to compare.
The difference	About $30 to $35 a month, and a different thing per dollar	Colostrum costs roughly $30 to $35 more a month, but the per-gram-of-active question matters more than the headline. Lactoferrin buys you 250 to 300 mg a day of one standardized protein.Colostrum at 20 g a day buys roughly 4 to 6 g of IgG if the powder hits the 20 to 30 percent standardization benchmark, plus growth factors and an unstated amount of lactoferrin. Nobody standardizes the lactoferrin in colostrum, so you cannot buy a lactoferrin dose through it at any price.

When to Switch

Both products get a 12-week assessment window, so judge either one at 12 weeks and not before. Colostrum gives a first noticeable change around week 2 against lactoferrin's week 4, but that early read is a comfort signal, not evidence the thing is working, and colostrum's onset figure is an estimate while lactoferrin's is extracted.

Move from colostrum to lactoferrin when your reason has narrowed to something lactoferrin has been tested on directly: iron handling and low hemoglobin, an H. pylori eradication course your clinician is already running, or mild to moderate acne you are willing to treat with the lactoferrin, zinc and vitamin E stack for 8 to 12 weeks. Cost pushes the same way, since you save $30 to $35 a month. Move from lactoferrin to colostrum when the target is gut barrier integrity, NSAID-driven gut damage, or fewer sick days through a heavy training block, because those are the endpoints with human colostrum trials behind them.

Running both is defensible and not redundant, since colostrum does not standardize its lactoferrin content, but you are then paying $85 to $130 a month for two dairy-derived products, so make the case for each one separately. Cow's milk allergy stops both, in either direction, with no switch available.

Who Should Pick What?

Menstruating adult with low hemoglobin or messy iron labs

Lactoferrin

Metabolic-health subrating 7.0 against 1.0, and Christofi 2024 pooled 19 randomized trials favoring lactoferrin for hemoglobin in low-hemoglobin populations. Pair it with clinician-selected iron rather than replacing iron: El-Hawy 2021 found lactoferrin alone was less effective than iron bisglycinate in 120 children.

Athlete in a heavy training block who keeps getting sick

Colostrum

This is the population colostrum was actually studied in. Jones 2016 found 44% fewer upper respiratory symptom days across five RCTs in exercising adults, and Jones 2014 found lower illness days in 53 active males at 20 g a day over 12 weeks. Start two weeks before the block intensifies.

Adult on a clinician-prescribed H. pylori eradication course

Lactoferrin

200 mg twice daily alongside standard therapy, for the 7 to 14 days the regimen runs. Hablass 2021 in 400 patients and Di Mario 2006 in 402 both improved eradication rates when lactoferrin was added. This is an adjunct to prescribed therapy, never a replacement for it.

Regular NSAID user with a leaky, irritable gut

Colostrum

Playford 2001 showed colostrum reduced the acute rise in intestinal permeability caused by NSAIDs in humans, and Hajihashemi 2024 pooled 10 RCT articles showing reduced permeability ratios. Run 20 g a day and reassess symptoms at 12 weeks.

Mild to moderate acne that has not responded to topicals

Lactoferrin

Skin-beauty subrating 6.8 against 3.5. Chan 2017 randomized 168 subjects to 100 mg lactoferrin with zinc and vitamin E twice daily and saw lesion reductions from week 2 peaking around week 10. Severe nodular acne still needs dermatology-grade care, not a supplement stack.

Budget is tight and your goal is general immune resilience

Lactoferrin

$25 to $50 a month against $60 to $80, and the low-dose colostrum workaround does not solve it. Most consumer colostrum protocols run 1 to 3 g a day, well below the 10 to 20 g used in the trials, so a cheap colostrum habit buys you a dose nobody has tested.

Anyone with a cow's milk allergy or Alpha-Gal Syndrome

Tie

Neither. Both are bovine milk products, so an allergy to one is an allergy to the other, and anaphylaxis is the worst-case risk on both reports. Prior dairy-triggered hives, swelling or breathing symptoms rules out the whole category. Recombinant human lactoferrin exists for people avoiding bovine protein, but clinical equivalence to bovine lactoferrin is not established.

Drug-tested athlete worried about what is in the tub

Lactoferrin

Colostrum itself is not a named WADA-prohibited substance, but WADA's 2013 statement warns that IGF-1 is prohibited, that natural products such as colostrum can carry small IGF-1 quantities, and that athletes use them at their own risk. A single purified protein carries less of that ambiguity.

Research Highlights

Mechanism Difference
These two mechanisms are complementary rather than redundant, and the reason is dose. Lactoferrin is a single iron-binding glycoprotein that starves pathogens of ferric iron, disrupts microbial membranes through lactoferricin, activates NK and dendritic cells and supports tight junctions. Colostrum contains lactoferrin, so the two overlap on iron sequestration and antimicrobial action.Colostrum's dominant mechanism is different: IgG and IgA binding pathogens in the gut lumen, with growth factors and proline-rich polypeptides supporting the epithelium. Colostrum powder standardizes IgG at 20 to 30 percent by weight and standardizes lactoferrin at nothing, so taking colostrum does not deliver a known lactoferrin dose.
Safety Comparison
Both are bovine milk products and both name cow's milk allergy as the hard stop. Anaphylaxis is the worst-case risk on each report, and the FDA has posted an undeclared milk-allergen recall on a children's chewable colostrum product, so labeling accuracy matters for allergic households.The differences are narrow. Lactoferrin adds Alpha-Gal Syndrome and hemochromatosis or iron overload without monitoring. Colostrum adds hormone-sensitive cancer without oncology clearance, severe lactose intolerance at 20 g a day, and a WADA IGF-1 caution for tested athletes. Both restrict pregnancy and lactation without clinician guidance.
Cost Comparison
Lactoferrin runs $25 to $50 a month at 250 to 300 mg a day of apolactoferrin, and colostrum runs $60 to $80 a month at 20 g a day of powder. Both figures were extracted from the source reports on 2026-09-07 at ordinary retail, not estimated. Colostrum therefore costs roughly $30 to $35 more each month.Per gram of active the picture changes shape. Lactoferrin buys one standardized protein. Colostrum at 20 g buys roughly 4 to 6 g of IgG when the powder meets its 20 to 30 percent benchmark, plus growth factors and an unstated quantity of lactoferrin. Cheap product on either side is the real cost risk, because underdosing hides.
Editorial Verdict
Lactoferrin scores 7.3 and colostrum 6.8, but the score gap is the least useful number in this comparison. Buy lactoferrin when the target is specific and has been tested: iron handling and low hemoglobin, H. pylori eradication as a clinician-run adjunct, or mild to moderate acne through the lactoferrin, zinc and vitamin E stack.Buy colostrum when the target is gut barrier integrity or fewer sick days inside a heavy training block, because Jones 2016, Hajihashemi 2024 and Marchbank 2011 all sit on that side. No trial has ever compared the two head to head, so every row here is an inference from separate evidence.
Durability
Neither one is a permanent change to anything. Lactoferrin scores 1.8 out of 5.0 on durability and colostrum 1.5, so both benefits track your last dose rather than banking. Both also score at the bottom of the dependency and reversibility scales, which is the good news: stopping either is uneventful.Practically, that means these are seasonal or situational tools. The colostrum protocols run through a training block or a sick season, and the lactoferrin protocols run 4 to 12 weeks against a defined target. Neither report frames indefinite daily use as the goal.
Evidence Quality
Lactoferrin scores 4.1 out of 5.0 on evidence quality against colostrum's 3.7, and the gap is real but narrower than it looks. Lactoferrin's evidence is broad and contradictory: a 19-trial hemoglobin meta-analysis with very high heterogeneity, positive H. pylori adjunct trials, and large negative neonatal trials in ELFIN and LIFT.Colostrum's evidence is narrower and more consistent inside its lane. Jones 2016 and Hajihashemi 2024 replicate in exercise-stressed adults, while Glowka 2020 found no significant effect on common immune biomarkers across 10 RCTs. Symptoms improved, blood markers did not.

Frequently Asked Questions

Is lactoferrin the same as colostrum?: No. Lactoferrin is one protein found inside colostrum. Colostrum is the whole bovine first milk, and its main bioactives are IgG and IgA immunoglobulins, plus growth factors, proline-rich polypeptides and lactoferrin. Buying colostrum gets you some lactoferrin, but the amount is not standardized on the label, so you cannot use it to hit a lactoferrin dose.
Which one is better, lactoferrin or colostrum?: Lactoferrin scores 7.3 and colostrum 6.8, but the use case decides it. Lactoferrin wins on iron handling and hemoglobin (7.0 against 1.0 on metabolic health), acne (6.8 against 3.5) and inflammation markers. Colostrum wins on athlete respiratory symptoms and gut permeability, where the human trials sit. No study has ever compared the two directly.
Can I take lactoferrin and colostrum together?: Yes, and it is not as redundant as it sounds, because colostrum does not standardize its lactoferrin content. The honest question is cost: running both is $85 to $130 a month for two dairy-derived products.Make the case for each one separately. If you cannot name a target for each, drop one. Both share the same cow's milk allergy contraindication, so stacking them adds no new allergy risk but no protection either.
Is 1 to 3 grams of colostrum a day enough?: Probably not. Most commercial and social-media colostrum protocols recommend 1 to 3 g a day, which is below the 10 to 20 g a day used for almost every adult immune and gut-barrier endpoint in the literature. Jones 2014 used 20 g a day. If budget forces a lower dose, 5 to 10 g a day is a more honest compromise than 1 g.
How long before I know if either one is working?: Both get a 12-week assessment window. Colostrum gives a first noticeable change around week 2 and lactoferrin around week 4, but colostrum's onset figure is an estimate while lactoferrin's is extracted from the report. Judge at 12 weeks against a defined target: symptom days, gut tolerance, a repeat CBC, or a lesion count.
Who should not take either one?: Anyone with a cow's milk allergy, and anyone who has had dairy-triggered hives, swelling or breathing symptoms. Both are bovine milk products, so there is no safe substitution between them. Pregnancy and lactation need clinician guidance on both.Lactoferrin additionally rules out Alpha-Gal Syndrome and unmonitored hemochromatosis or iron overload. Colostrum additionally rules out hormone-sensitive cancer without oncology clearance and severe lactose intolerance at 20 g a day.
Does either one prevent colds in a normal healthy adult?: The honest answer is that neither has proven it in sedentary healthy adults. Colostrum's respiratory evidence comes from exercise-stressed adults and athletes, so applying it to a desk job is extrapolation. Berthon 2022 found lactoferrin's adult respiratory prevention signal mixed to null, and Glowka 2020 found no colostrum effect on common immune biomarkers across 10 RCTs.
Should I give either one to my baby?: Not on your own. Both carry pediatric subratings that look encouraging, lactoferrin at 8.0 and colostrum at 4.0, and the large trials do not support routine use. ELFIN found late-onset infection of 29% against 31% in 2,203 very preterm infants, LIFT found no primary composite benefit, and Cochrane rated the certainty low to very low. These are clinician-run NICU protocols, not home supplements.
Is colostrum a problem for drug-tested athletes?: Possibly. Colostrum itself is not a named WADA-prohibited substance, but WADA's 2013 statement is explicit that IGF-1 is prohibited, that natural products including colostrum can contain small IGF-1 quantities, and that athletes use them at their own risk. Lactoferrin, as a single purified protein, carries less of that ambiguity.

Evidence Sources

Meta-analysis Oral bovine lactoferrin versus iron supplementation in low-hemoglobin populations (2024) 19 randomized trials favored lactoferrin for hemoglobin in low-hemoglobin populations, with very high heterogeneity and risk-of-bias concerns.
Meta-analysis Bovine colostrum supplementation and upper respiratory symptoms during exercise training (2016) 5 RCTs in 152 exercising adults: 44% fewer upper respiratory symptom days and 38% fewer episodes, with risk-of-bias caveats.
Meta-analysis Bovine colostrum in increased intestinal permeability in healthy athletes and patients (2024) 10 RCT articles: significant reductions in lactulose/rhamnose and lactulose/mannitol permeability ratios, with no I-FABP difference.
RCT Enteral lactoferrin supplementation for very preterm infants (ELFIN) (2019) 2,203 very preterm infants: late-onset infection 29% against 31%, adjusted RR 0.95. Does not support routine preventive use.
RCT Lactoferrin with vitamin E and zinc for mild-to-moderate acne (2017) 168 subjects randomized: total lesion reductions appeared by week 2 and peaked around week 10. The intervention was a stack, not lactoferrin alone.
RCT Lactoferrin with triple or sequential therapy for H. pylori eradication (2021) 400 patients: lactoferrin improved eradication success when added to proton-pump-based triple therapy or sequential therapy.
RCT Bovine lactoferrin for H. pylori eradication (2006) 402 H. pylori-positive patients: triple therapy plus lactoferrin improved eradication rate versus triple therapy alone.
RCT Oral lactoferrin and immune markers in healthy older adults (2026) 103 older adults: 600 mg a day changed virus-stimulated IL-6 and T-cell subsets over 4 weeks, without proving an infection-outcome reduction.
Systematic review Lactoferrin, inflammation, immune function and respiratory tract infections in humans (2022) Adult respiratory tract infection prevention signal is mixed to null. Useful for tempering broad lactoferrin immune claims.
RCT The nutriceutical bovine colostrum truncates the increase in gut permeability caused by heavy exercise in athletes (2011) 12-person crossover trial: colostrum reduced the exercise-induced rise in gut permeability.
RCT Co-administration of bovine colostrum reduces acute NSAID-induced increase in intestinal permeability (2001) Human NSAID permeability study supporting the gut-barrier use case, limited by a small sample.
Meta-analysis Immunological outcomes of bovine colostrum supplementation in trained and physically active people (2020) 10 RCTs, 239 participants: no significant effects on common immune biomarkers despite the upper respiratory symptom evidence.
Systematic review Enteral lactoferrin for preventing sepsis and NEC in preterm infants, Cochrane review (2020) 12 studies, 5,425 preterm infants: low to very low certainty evidence, with explicit caution about routine recommendations.
RCT Effects of bovine colostrum supplementation on upper respiratory illness in active males (2014) 53 active males: fewer upper respiratory illness days and episodes on 20 g a day over 12 weeks.
RCT Iron bisglycinate, lactoferrin, lactoferrin with iron, and iron polymaltose in pediatric iron-deficiency anemia (2021) 120 children: lactoferrin alone was less effective than iron bisglycinate, lactoferrin with iron, and iron polymaltose.
Guideline WADA statement on the prohibited substance IGF-1 (2013) IGF-1 is prohibited, small IGF-1 quantities can occur in natural products such as colostrum, and athletes use such products at their own risk.

Glossary

Quick reference for the medical and technical terms used in this comparison.

IgG Immunoglobulin G: The main antibody in bovine colostrum. It binds pathogens inside the gut before they reach the gut wall. Good colostrum powder is standardized to 20 to 30 percent IgG by weight.
Apolactoferrin Iron-Free Lactoferrin: Lactoferrin with its iron binding sites empty, so it can grab free iron. The preferred form when the goal is iron sequestration, gut support or antimicrobial action.
Lactoferricin Lactoferricin: A fragment released when lactoferrin is digested. It punches holes in microbial membranes, which is the direct antimicrobial half of lactoferrin's mechanism.
PRP Proline-Rich Polypeptides: Small colostrum peptides that adjust cytokine signaling up or down depending on immune state. One of the reasons colostrum is more than its immunoglobulin content.
NEC Necrotizing Enterocolitis: A serious gut condition in preterm infants. It is the endpoint several large lactoferrin and colostrum neonatal trials tried and largely failed to move.
URS Upper Respiratory Symptoms: Sore throat, congestion and cough, counted as symptom days in athlete trials. Jones 2016 found 44% fewer of them on colostrum.
Zonulin Zonulin: A protein that loosens the junctions between gut cells. Halasa 2017 measured lower stool zonulin in athletes taking colostrum, which is a gut-barrier signal.
Alpha-Gal Alpha-Gal Syndrome: A tick-triggered allergy to a sugar found in mammal products. It is a hard contraindication for bovine lactoferrin.
IGF-1 Insulin-Like Growth Factor 1: A growth hormone mediator naturally present in small amounts in colostrum. WADA prohibits IGF-1 and warns tested athletes that colostrum use is at their own risk.
H. pylori Helicobacter Pylori: A stomach bacterium behind many ulcers. Lactoferrin at 200 mg twice daily improved eradication rates when added to standard prescribed therapy.

Nick Urban Health Optimization Researcher & CHEK Holistic Lifestyle Coach Level 2

I've spent over a decade testing supplements on myself and screening them for clients and podcast guests

Reviewed Sep 7, 2026 · next review Dec 6, 2026

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