LifeSource Vitamins Colostrum 500 mg — Immune & Gut Health Support*Colostrum — 500 mg — 60 Capsules — Immune & Gut Health Support*
LifeSource Vitamins Colostrum 500 mg delivers premium bovine colostrum, naturally rich in immunoglobulins (IgG), lactoferrin, and proline-rich polypeptides (PRPs). These bioactives help strengthen immune defenses, maintain gut barrier integrity, and promote overall resilience.* Colostrum may also support healthy recovery, digestive balance, and microbial diversity for whole-body wellness.* Ethically sourced from pasture-raised cows, this supplement is produced in FDA-registered, GMP-certified facilities and
3rd-party lab tested
for purity, potency & label accuracy.*
Research Promise:
At LifeSource Vitamins, our commitment is rooted in research and results. Every benefit below is supported by human clinical studies indexed in the National Institutes of Health (NIH) via PubMed, with full texts available in the National Library of Medicine (NLM) PubMed Central (PMC)
when available. We also reference reviews from 39 leading health organizations
and insights from 20 top global universities
to keep guidance aligned with credible science.*
Clinically Studied Benefits (with research)
• Immune defense* — Colostrum reduced incidence and duration of upper respiratory infections. (NIH/PubMed — Brinkworth GD, 2003)
• Gut barrier in athletes* — Colostrum decreased exercise-induced intestinal permeability. (NIH/PubMed — Marchbank T, 2011)
• NSAID-related gut injury* — Reduced aspirin-induced increases in intestinal permeability. (NIH/PubMed — Playford RJ, 2001)
• Mucosal immunity (sIgA)* — Increased salivary sIgA in athletes over 12 weeks; fewer respiratory symptom days in training populations. (NIH/PubMed — Crooks C, 2006; PMC — Jones AW, 2016)
Additional / Promising Evidence*
• Exercise-related gut leak* — Reviews support reduced permeability during exertion. (PMC — Marchbank T, 2017; NIH/PubMed — Davison G, 2022) (NIH-indexed reviews)
• Traveler’s diarrhea prevention (ETEC)* — Trials of hyperimmune (targeted) bovine colostrum reported lower risk during travel. (PMC — Plettenberg A, 2011)
• Adjunct gut-barrier support* — In combination with zinc-carnosine, colostrum enhanced barrier integrity. (NIH/PubMed — Playford RJ, 2016)
• Microbiome balance* — Reviews note prebiotic/immunologic effects of colostrum. (PMC — Bagwe S, 2021) (NIH-indexed reviews)
• Athletic recovery & illness risk* — Narrative review on GI markers and URTI risk in training populations. (PMC — Jones AW, 2021) (NIH-indexed reviews)
• Gut injury biomarkers* — Lower I-FABP during exertion. (PMC — Davison G, 2018)
University / Academic Context*
• Exercise-induced gut permeability* — Leading academic groups report that bovine colostrum can reduce markers of intestinal permeability under exertional stress. (NIH/PubMed — Marchbank T, 2011; PMC — Marchbank T, 2017)
• Mucosal immunity in athletes* — Controlled studies show increases in salivary IgA and fewer respiratory symptom days. (NIH/PubMed — Crooks C, 2006; PMC — Jones AW, 2016)
Global Evidence & Authoritative Reviews*
• Colostrum & gut barrier (systematic review)* — NIH-indexed synthesis supports reduced permeability in athletes. (NIH/PubMed — Davison G, 2022) (NIH-indexed reviews)
• Exercise, illness risk & mucosal immunity (review)* — NIH-indexed overview on GI markers and URTIs in training populations. (PMC — Jones AW, 2021) (NIH-indexed reviews)
We monitor research from leading institutions — Harvard Univ, Johns Hopkins Univ, Mayo Clinic, Cleveland Clinic,
Cambridge Univ, Oxford Univ, Stanford Univ, Yale Univ, Tufts Univ, Univ of Florida, Oregon State Univ (Linus Pauling Institute),
Columbia Univ, Cornell Univ, and many more — to keep our guidance aligned with credible science.*
Key Ingredients for Immune & Gut HealthBovine Colostrum — Provides immunoglobulins (IgG), lactoferrin, and PRPs that support immune and gut health.* (NIH/PubMed — Brinkworth GD, 2003)
Brief Benefit Bullets
• Boosts immune defenses*
• Supports gut barrier integrity & comfort*
• Aids recovery and resilience under stress*
• Helps maintain microbial balance*
• Rich in IgG, PRPs & lactoferrin*
• Ethically sourced, non-GM O bovine colostrum*
• Supports whole-body wellness*
3rd-party lab tested for purity & potency*
Suggested Use
Take 1 capsule 1 to 3 times daily, preferably with meals or as directed by your healthcare professional. Do not exceed recommended dose. If pregnant, nursing, taking medications, or have a medical condition, consult your physician.*
Product Specifications
• Serving Size — 1 capsule
• Servings Per Container — 60
• Active Ingredients — Bovine Colostrum (500 mg, 30% Immunoglobulin G)
• Other Ingredients — Gelatin (bovine), vegetable magnesium stearate, silica
• Free From — Non-GMO, gluten-free, soy-free; contains milk-derived ingredients*
• Quality — Third-party tested for identity, potency & purity
At LifeSource Vitamins, we test every single product through independent, third-party labs to verify identity, purity, potency, and label accuracy. Click here to view our
3rd-party testing process.
LifeSource Vitamins — Proudly American — Since 1992
*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.
LifeSource Vitamins Colostrum 500 mg — supports immune defenses & gut barrier integrity; non-GMO, ethically sourced, 3rd-party tested. Clinically Studied Ingredients — NIH/PubMed!*
