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What it is
A single-serve daily stick pack pairing 1 gram of bovine colostrum standardized to 10% IgG (immunoglobulin G, the antibody-like immune proteins in the first milk a mammal produces) with an LC-Plasma postbiotic (heat-treated Lactococcus lactis strain Plasma), plus vitamins C and D3 and fiber. It is built to support both the gut lining and everyday immune-cell communication. Contains milk.
Why the evidence supports it
This pairs two ingredients that each carry their own human research rather than leaning on colostrum alone: the LC-Plasma postbiotic is studied for activating the 'leader' immune cells (plasmacytoid dendritic cells) that help coordinate a broader immune response, and bovine colostrum has trial work on gut-barrier integrity, including reduced intestinal permeability markers in athletes. Vitamins C and D3 round it out as recognized cofactors for normal immune-cell function. Together that makes it an evidence-based way to support the cell's Exchange function -- the gut lining's normal antigen-handling and the chatter between immune cells that keeps that barrier coordinated -- and it is support only, not a treatment or preventive for infection or gut disease. Exact postbiotic count and vitamin amounts still need visual label confirmation.
What it supports
- Supports healthy gut-barrier integrity
- Supports the immune system's normal, everyday cell-to-cell communication
- Provides IgG-rich bovine colostrum and an LC-Plasma postbiotic
- Provides vitamin C and D3 alongside gut-supportive fiber
Which function it supports
Ties to the cell's Exchange function -- colostrum's IgG and the LC-Plasma postbiotic support the gut lining's normal antigen-handling and the everyday chatter between immune cells that keeps that barrier coordinated. This is gut-barrier and communication support only, not a treatment for infection or gut disease.
Learn the why behind this pillarHow it relates to your cells and mind
Every product here ties back to a specific job your body does. This one touches the functions below -- follow either link to see the mechanism in full, then dig into the studies.
What it is made of -- and the mechanisms behind it
Each ingredient acts on several of the body's functions. Taken together, this product touches these cell and mind functions -- follow any to see the mechanism in full.
The ingredients
Mechanisms drawn from our ingredient knowledge base (5 profiled ingredients). Structure and function only -- not a treatment claim.
The science on the ingredients
These studies are research on the ingredients and mechanisms in this product, not on the finished product itself, and they are shown for education. Nothing here is medical advice, and nothing here may be used to diagnose, treat, cure, or prevent any disease. Talk to your own provider about what is right for you.
- Bovine Colostrum in Increased Intestinal Permeability in Healthy Athletes and Patients: A Meta-Analysis of Randomized Clinical Trials
Digestive Diseases and Sciences · 2023
Mixed but generally favorable effect of colostrum on intestinal permeability markers; results inconsistent across studies.
- A Systematic Review of the Influence of Bovine Colostrum Supplementation on Leaky Gut Syndrome in Athletes: Diagnostic Biomarkers and Future Directions
2022
In a systematic review of 9 studies in athletes, bovine colostrum supplementation was linked to reduced exercise-induced intestinal permeability, though study quality varied.
- Bovine Colostrum Applications in Sick and Healthy People: A Systematic Review
Nutrients · 2021
In a systematic review of 28 studies, bovine colostrum supplementation was linked to fewer upper respiratory infections in athletes and reduced intestinal permeability, though study quality was highly heterogeneous.
- Bovine colostrum supplementation in rugby
European journal of applied physiology · 2026
In a randomized trial of 29 club rugby players, 8 weeks of bovine colostrum at 38 g per day increased vertical jump power but not other strength, aerobic capacity, body composition, or immune markers.
- Effects of acute bovine colostrum supplementation on immune responses to prolonged cycling: a randomised crossover trial
2026
In 16 recreationally active men cycling 2.5 hours, acute bovine colostrum raised neutrophil oxidative burst by about 15% and salivary lysozyme, but did not change salivary lactoferrin or immunoglobulin A.
- Moderate Dose Bovine Colostrum Supplementation in Prevention of Upper Respiratory Tract Infections in Medical University Students: A Randomized Triple Blind Placebo-Controlled Trial
Nutrients · 2023
Self-reported respiratory-symptom frequency severity and wellbeing favored colostrum particularly among medical students considered higher exposure risk -- No laboratory-confirmed infection or immune biomarker; benefit was not broad across the lower-risk health-science stratum
Effects of acute bovine colostrum supplementation on immune responses to prolonged cycling: a randomised crossover trialEstablishedRandomized controlled trial2026
In 16 recreationally active men cycling 2.5 hours, acute bovine colostrum raised neutrophil oxidative burst by about 15% and salivary lysozyme, but did not change salivary lactoferrin or immunoglobulin A.
Arwel W Jones; Rhys Thatcher; Glen Davison
Bovine colostrum supplementation in rugbyEstablishedRandomized controlled trial2026
In a randomized trial of 29 club rugby players, 8 weeks of bovine colostrum at 38 g per day increased vertical jump power but not other strength, aerobic capacity, body composition, or immune markers.
Mizelman E; Shaw KA; Kaviani M; Brenna E; Haines D; Chilibeck PD -- European journal of applied physiology
Health benefits and value addition of bovine colostrum (BC): a comprehensive review of its nutritional and functional potentialEmergingExpert review2026
This review of bovine colostrum describes immunoglobulins, lactoferrin, growth factors and proline-rich polypeptides acting on immune regulation and gut integrity, and reports clinical evidence in irritable bowel syndrome, ulcerative colitis and infectious diarrhoea.
Sawera Riaz; Ali Imran; Musarrat Rasheed; Aleeza Amjad; Amar Shankar; Gauri Chauhan; Zunaira Basharat; Fakhar Islam; Usman Naeem; Catherine Tamale Ndagire
High-Resolution Profiling of Lactation-Phase-Specific MFGM Proteomes in Breast Milk: Multidimensionally Functional Insights from Astral-DIA AnalysisEmergingPrimary research (design unspecified)2026
Proteomic profiling of breast milk identified 6445 milk fat globule membrane proteins whose total amount fell across lactation, with colostrum richest in immune proteins such as lactoferrin and IgA.
Zhe Zhao; Xuemin Wang; Sufang Duan; Ignatius Man-Yau Szeto; Xiuxiu Zhang; Jian He; Xiaodong Li; Zhong Wang; Yonggen Zhang; Muneeb Muhammad
Bioactive Peptides from Bovine Colostrum: Sources, Structures, and Biomedical Applications.2026
A review describes how bioactive peptides derived from bovine colostrum proteins, including caseins, immunoglobulins, and lactoferrin, show antimicrobial, antitumor, anti-inflammatory, and antioxidant properties supporting mucosal immunity and gut integrity.
Alkan Y; Yalçıntaş YM; Karav S -- Probiotics and antimicrobial proteins
A Case of Systemic Lupus Erythematosus Initially Presenting With Generalized Lymphadenopathy: A Diagnostic ChallengeEmerging2026
A 47-year-old man with lupus that first appeared as widespread swollen lymph nodes later developed joint inflammation, hemolytic anemia, and low blood cell counts, and went into remission after high-dose steroids, IV immunoglobulin, and rituximab.
Eugenio Vázquez-Meraz; José Arellano-Galindo; Alberto Díaz-Romero; Jorge A Pérez-Castro; Carolina Duarte-Salazar
Effects of Colostrum Source, Dose and Processing on <i>In Vitro</i> Rumen Fermentation in Weaned LambsEmergingPrimary research (design unspecified)2026
In a batch culture of lamb rumen fluid, high-dose colostrum raised gas production 18 percent and ammonia 41 percent, and removing IgG cut those effects while removing lactoferrin changed little.
Jennifer Muñoz-Grein; Amina Hind Chekikene; Dimitra Graikini; Lourdes Sánchez; Manuel Fondevila; Alejandro Belanche
Peptidomic Profiling Analysis of Endogenous Peptides in Buffalo Milk During Lactation StagesEmergingPrimary research (design unspecified)2026
Across 18 buffaloes, milk peptide counts rose from 2,099 in day-one colostrum to 4,418 in day-30 mature milk, with 54 potentially bioactive peptides found in colostrum.
Yue Zhang; Xingchen Huang; Rongchun Huang; Pingbai Liu; Jiazheng Zhu; Yuan Yang; Gan Liang; Meiting Chen; Mengyuan Zhou; Guangsheng Qin; Qiang Fu
Impact of level of nutritional dose and diet specific components of colostrum in promoting 24 h gain, circulating lipid profile, and circulating levels of immunocrit, proteins, glucose, and free amino acids in neonatal gilt pigletsEmergingPrimary research (design unspecified)2026
Among 57 newborn gilt piglets fed for 24 hours, colostrum at 20 percent of birth weight gave the highest serum immunocrit and protein, while all piglets fed only 10 percent lost weight.
Linda M Beckett; Wonders Ogundare; Leriana Garcia Reis; KaLynn Harlow; Addison Hill; Michayla Dinn; Emma Shelton; Evy Tobolski; Caeden Meade; Yu Han-Hallett; Christina Ramires Ferreira; Kara Stewart; Theresa M Casey
Cocoa Attenuates Gluten-induced Pathogenesis in a Preclinical Model of Celiac DiseaseEmerging2026
In DQ8-Dd-villin-IL-15 transgenic mice fed gluten for 25 days, cocoa supplementation limited villous atrophy, reduced anti-gliadin antibodies and pro-inflammatory cytokines, and normalised the gluten-disrupted immunoglobulin isotype profile.
Marina Girbal-González; María José Rodríguez-Lagunas; Arturo Rodríguez-Banqueri; Ulrich Eckhard; F Xavier Gomis-Rüth; Àngels Franch-Masferrer; Francisco J Pérez-Cano
Relationship between perfluoroalkyl substance exposure and immunoglobulin E among Korean adults from Korean National Environmental Health Survey cycle 4 (2018-2020): a cross-sectional studyEmerging2026
In a representative sample of nearly 3,000 Korean adults, a mixture of five PFAS measured in blood was tested against total IgE, the antibody that rises in allergic responses.
Dongwoo Kim; Kyung-Jae Lee; June-Hee Lee; InHo Lee
Determination of multiclass contaminants in colostrum by HS-SPME-GC-MS/MS: method development and validationEmerging2026
A new lab method detected contaminants in colostrum, the first milk after birth, finding at least one chemical, most often parabens or the pesticide atrazine, in 10 of 26 samples tested.
Anna Carolina Nickel Meireles; Sergiane Caldas Barbosa; Larine Kupski; Jean Lucas de Oliveira Arias; Vanusa Pousada da Hora; Josias Merib; Ednei Gilberto Primel
A rare presentation of CASPR2-associated Morvan syndrome overlapping with GM1-positive AMSAN: a case reportEmerging2026
A 70-year-old man with relapsing lower-limb weakness, muscle twitching and insomnia had both anti-GM1 and anti-CASPR2 antibodies, and improved markedly with corticosteroids and intravenous immunoglobulin.
Yajing Wu; Xiaoli Tang; Tianyuan Guan; Jing Xu; Peiyuan Lv; Yanhong Dong
Immunoglobulin allotypes and <i>RELN</i> alleles and humoral immunity to HSV1 in patients with Alzheimer's disease and matched controlsEmergingPrimary research (design unspecified)2026
In Alzheimer's disease patients and controls, antibody levels against a herpes simplex virus protein were higher in AD cases, and an interaction between immunoglobulin KM allotypes and a RELN gene variant appeared only in AD patients.
Janardan P Pandey; Aryan M Namboodiri; Paul J Nietert
Effects of Vitamin C and/or E Supplementation on Glycemic Control and Cardiovascular Risk Factors in Type 2 Diabetes: A Systematic Review and Subgroup Meta-analysis.EmergingMeta-analysis2026
A meta-analysis of 52 trials in type 2 diabetes found vitamin C and/or E had similar effects on blood sugar control, but vitamin C alone or combined with E lowered systolic blood pressure, and the combination raised HDL.
Aragón-Vela J; Huertas JR; Casuso RA -- Nutrition reviews
Ascorbic acid as an adjunct therapy for anemia in erythropoietin-treated hemodialysis patients: a systematic review and meta-analysisEmergingMeta-analysis2026
A meta-analysis of 14 trials in hemodialysis patients found vitamin C supplementation modestly raised hemoglobin and iron saturation while reducing required erythropoietin dose, though evidence certainty was rated low.
Salma Alejandra Beltrán Covarrubias; Angelo Magallanes Bajana; Alejandro Chen Liang; Yeison Cruz Castillo; Montserrat Villa Sánchez; España De la Rosa Valdez; Michelle Sámano Sánchez; Shreya Shambhavi; Vaidarshi Abbagoni; Oscar Yasser Pena Zapata; Camila Sanchez Cruz; José Antonio García-Erce; Ernesto Calderón-Martínez
Early high-dose vitamin C for out-of-hospital cardiac arrest: the VITaCCA randomized clinical trial.ContestedRandomized controlled trial2026
A randomized controlled trial found that vitamin C 10 g led to higher troponin T release, worse renal function and worse neurological outcomes.
Rozemeijer S; Dubois EA; de Grooth HJ; den Uil CA; Rettig TCD; Rijpstra TA; van den Bogaard B; van Zanten ARH; Bosman RJ; Elbers PWG; Girbes ARJ; Vlaar APJ; Twisk JWR; Christopher KB; Schober P; Oudemans-van Straaten HM; de Man AME -- Intensive care medicine
Potential Antidote Against Lead Toxicity-A ReviewEmergingExpert review2026
This review of animal studies on lead poisoning describes spirulina, curcumin, garlic, vitamin C and vitamin E as antioxidants that may lessen some of lead's toxic effects, while noting that safe dosing still needs to be established.
Romanowska Z; Ścibior A; Radko L; Męcik-Kronenberg T -- International journal of molecular sciences
Vitamin deficiencies and Alzheimer's disease: evidence and implications for supplementationEmergingExpert review2026
This review found vitamins B6, B9 and B12 showed promising effects on Alzheimer's disease in clinical trials, with added benefit when combined with antioxidants like vitamin C and E in early disease stages.
Mariya Timotey Miteva; Davide Laurenti; Roberto Mattioli; Daniel Di Risola; Alessia Mariano; Luciana Mosca
Effect of choline-stabilized orthosilicic acid versus vitamins C and E on peri-implant procollagen type I N-terminal propeptide levels in smokers receiving dental implants: a randomized clinical studyEmergingPrimary research (design unspecified)2026
In 28 smokers randomized after dental implant placement, one month of choline-stabilized orthosilicic acid gave higher bone-formation marker PINP and less crestal bone loss at three months than combined vitamin C and E.
Divya Gupta; Sumit Malhotra; Aruna Nautiyal; Tanya Attre; Anoushka Pandey; Rahul Chopra -- International Journal of Clinical Trials
Sodium ascorbate versus ascorbic acid in sepsis: a narrative review of emerging cardiovascular and neurological benefits.2026
A narrative review found that ascorbate (vitamin C) is being studied as an adjunct therapy in sepsis for its support of endothelial function, reduction of oxidative stress, and enhancement of endogenous vasopressor synthesis.
Bishop MS; Lane DJR; Ayton S; May CN; Plummer MP; Lankadeva YR -- Critical care (London, England)
Vitamin C supplementation attenuates IBV-induced histopathological lesions and modulates innate immune-related gene expression in SPF chickensEmergingPrimary research (design unspecified)2026
In 80 specific-pathogen-free chicks given vitamin C at 400 mg per kg of diet for 21 days before bronchitis virus challenge, growth and antibody titers were unchanged but tracheal, kidney and bursal damage was lower.
Bing Wang; Jiahui Fan; Tianyu Wu; Jingjing Xie; Xiaona Zhang; Zongxi Han; Huixin Li; Deying Ma
Vitamin C in fruits and vegetables: stability, processing effects, analytical detection, nutrient interactions, bioavailability, and health implications.2026
A review found that vitamin C in fruits and vegetables acts as an antioxidant cofactor supporting immune regulation, collagen synthesis, and iron absorption, though its content is highly sensitive to processing and storage conditions.
Verma K; Nema PK; Badgujar PC; Venkatesh K; Rajendran A; Loushigam GL -- Food chemistry
Exogenous ascorbic acid enhances drought tolerance in Hypericum perforatum L. by modulating antioxidant defense and osmotic adjustmentEmerging2026
In St John's wort under deficit irrigation, foliar ascorbic acid at 400 mg/L increased ascorbate peroxidase, catalase and superoxide dismutase activity and reduced malondialdehyde and electrolyte leakage.
Fatemeh Asadi; Nematollah Etemadi; Rahim Amirikhah; Mohammad Reza Mosaddeghi; Hamed Aalipour
Balanced by design -- we show supporting and contradicting findings. Search all studies
If you have had labs done
These are lab markers where this product's ingredients have measured evidence in our citation library. This is not a claim that the product will change your results -- the research attaches to the ingredient, and what a marker means depends on the whole picture. Each one links to its full entry, including what typically moves it and how to read it.
via Vitamin D · 795 studies, 345 in people
What people often notice when this marker sits outside the usual range
Higher: ⚠️ Toxicity risk is hypercalcaemia and kidney stones.
Lower: The general deficiency picture -- fatigue, aching bones and muscles, low mood worse in winter, frequent illness, hair loss, slow healing.
- Fecal Short-Chain Fatty Acids (SCFAs)solid evidence
via Prebiotics / Inulin · 108 studies, 30 in people
What people often notice when this marker sits outside the usual range
Higher: Very high fecal SCFAs may reflect malabsorption or rapid transit rather than a thriving microbiome.
Lower: Constipation or sluggish transit.
- Ferritin, Iron, Iron Saturation & TIBCsolid evidence
via Vitamin C · 100 studies, 23 in people
What people often notice when this marker sits outside the usual range
Higher: Often SILENT for years, which is what makes iron overload dangerous.
Lower: Fatigue that rest does not fix -- and it appears at LOW FERRITIN, long before haemoglobin falls or anaemia exists.
- Calciumsolid evidence
via Vitamin D · 56 studies, 22 in people
What people often notice when this marker sits outside the usual range
Higher: "Bones, stones, groans and psychic moans" -- the old teaching phrase, and still the best summary: bone pain, kidney stones, abdominal pain and constipation, low mood and confusion.
Lower: Tingling around the mouth and in the fingers and toes.
- Calciumsolid evidence
via Vitamin D · 56 studies, 22 in people
What people often notice when this marker sits outside the usual range
Higher: A high serum calcium needs clinical work-up -- causes include parathyroid, vitamin D and kidney issues -- not a supplement adjustment.
- Magnesiumsolid evidence
via Vitamin D · 41 studies, 14 in people
What people often notice when this marker sits outside the usual range
Higher: Almost always caused by supplements plus reduced kidney function, not by food.
Lower: Muscle cramps, especially calves at night; eyelid twitching that goes on for days.
- Estradiol, FSH, LH, Prolactin, DHEA-S & Testosteronesolid evidence
via Vitamin D · 28 studies, 14 in people
What people often notice when this marker sits outside the usual range
Higher: HIGH FSH with low oestradiol is the menopause transition signal.
Lower: Joint aches that appeared with no injury; skin and hair changing texture.
- Estradiol (E2)solid evidence
via Vitamin D · 28 studies, 14 in people
What people often notice when this marker sits outside the usual range
Higher: Breast tenderness, heavy or painful periods, fluid retention, worsening premenstrual mood, headaches around the period.
Lower: Vaginal dryness, painful sex, poor sleep, low mood, hot flushes, brain fog and word-finding difficulty.
- White Blood Cell Count & Differentialsolid evidence
via Vitamin C · 14 studies, 10 in people
What people often notice when this marker sits outside the usual range
Higher: Usually an active infection -- fever, feeling unwell, a specific site that hurts.
Lower: Frequent or lingering infections; mouth ulcers; slow recovery.
- High-Sensitivity C-Reactive Protein (hs-CRP)solid evidence
via Vitamin D · 9 studies, 8 in people
What people often notice when this marker sits outside the usual range
Higher: Deep, unrefreshing fatigue -- searched as 'tired all the time blood tests normal' and 'why am i tired even after 8 hours sleep'.
Lower: No symptoms. Low is the desirable direction.
- High-Sensitivity C-Reactive Protein (hs-CRP)solid evidence
via Vitamin D · 9 studies, 8 in people
What people often notice when this marker sits outside the usual range
Higher: Poor recovery from ordinary exertion; getting ill more easily.
Lower: Low is the desired direction.
- High-Sensitivity C-Reactive Protein (hs-CRP)solid evidence
via Vitamin D · 9 studies, 8 in people
What people often notice when this marker sits outside the usual range
Higher: Deep unrefreshing fatigue, migrating aching, brain fog, low mood with no situational cause, poor recovery -- all of which overlap the perimenopause symptom list almost exactly.
Lower: Low is the desired direction.
- Vitamin D (25-Hydroxyvitamin D)solid evidence
via Vitamin D · 20 studies, 7 in people
What people often notice when this marker sits outside the usual range
Higher: Excess comes from supplements, essentially never from sun.
Lower: Fatigue -- our library holds an explicit study of 25(OH)D and fatigue severity in adults.
- Vitamin Dsolid evidence
via Vitamin D · 20 studies, 7 in people
What people often notice when this marker sits outside the usual range
Higher: Excess risks hypercalcaemia and kidney stones -- read the main vitamin D entry.
- Vitamin D (Gut Barrier)solid evidence
via Vitamin D · 20 studies, 7 in people
What people often notice when this marker sits outside the usual range
Higher: See the main vitamin D entry -- excess risks hypercalcaemia and kidney stones.
Lower: Vitamin D deficiency is consistently associated with altered gut microbiota and increased permeability in observational data.
- Vitamin D (25-hydroxyvitamin D)solid evidence
via Vitamin D · 20 studies, 7 in people
What people often notice when this marker sits outside the usual range
Higher: Excess risks hypercalcaemia and kidney stones -- toxicity comes from supplements, essentially never from sun.
Lower: Fatigue, aching bones and muscles, low mood worse in winter, frequent illness, hair loss.
- Uric Acidsolid evidence
via Vitamin C · 20 studies, 5 in people
What people often notice when this marker sits outside the usual range
Higher: Sudden severe pain, redness and swelling in one joint -- classically the base of the big toe, often starting overnight.
via Vitamin D · 9 studies, 5 in people
What people often notice when this marker sits outside the usual range
Higher: HIGH ALP: bone pain or liver/bile symptoms.
Lower: LOW ALBUMIN: swelling of ankles and feet, puffiness around the eyes, fatigue, poor wound healing, muscle loss.
- Antinuclear Antibodies (ANA) -- Titer and Patternemerging evidence
via Vitamin D · 795 studies, 345 in people
What people often notice when this marker sits outside the usual range
Higher: Joint pain and stiffness WORSE IN THE MORNING and easing with movement -- the opposite of mechanical wear.
Lower: Negative is expected and carries no symptoms.
- Anti-Cyclic Citrullinated Peptide (Anti-CCP / ACPA)emerging evidence
via Vitamin D · 795 studies, 345 in people
What people often notice when this marker sits outside the usual range
Higher: Symmetrical small-joint pain and swelling -- both hands, both wrists -- with morning stiffness lasting more than about an hour and easing with movement.
- Immunoglobulin E (IgE), Total and Allergen-Specificemerging evidence
via Vitamin D · 795 studies, 345 in people
Reasonable to correct a deficiency on its own merits.
What people often notice when this marker sits outside the usual range
Higher: Hay fever, allergic rhinitis, itchy watery eyes.
Lower: Normal, and a normal total IgE does not exclude allergy.
- Magnesiumemerging evidence
via Vitamin D · 41 studies, 14 in people
What people often notice when this marker sits outside the usual range
Higher: Because muscle-meat and refined foods are low in magnesium, shortfall is common on modern diets.
Lower: A high serum magnesium is rare and almost always tied to impaired kidney function (weakness, low blood pressure) -- a medical finding, since magnesium is renally cleared.
- Magnesiumemerging evidence
via Vitamin D · 41 studies, 14 in people
What people often notice when this marker sits outside the usual range
Higher: A high serum magnesium is rare and almost always tied to impaired kidney function (weakness, low blood pressure) -- a medical finding, since magnesium is renally cleared.
- ANA Screen, Titer & Pattern; Rheumatoid Factoremerging evidence
via Vitamin D · 43 studies, 9 in people
What people often notice when this marker sits outside the usual range
Higher: Joint pain and stiffness that is WORSE IN THE MORNING and eases with movement -- the opposite of mechanical wear, which worsens through the day.
Lower: A negative result is the expected one and carries no symptoms.
- Uric Acidemerging evidence
via Vitamin C · 20 studies, 5 in people
What people often notice when this marker sits outside the usual range
Lower: A low-within-range uric acid is generally viewed as more favourable for vascular and kidney load -- though that is a mechanistic read, not a validated target.
- Zonulin (serum and fecal)emerging evidence
via Bovine colostrum / IgG · 7 studies, 4 in people
What people often notice when this marker sits outside the usual range
Higher: Bloating and abdominal discomfort that does not track neatly with any one food.
Lower: No symptoms; an intact barrier is the desired state.
- Thyroglobulin Antibodies (TgAb)emerging evidence
via Vitamin D · 6 studies, 3 in people
What people often notice when this marker sits outside the usual range
Higher: Often NONE for years. Antibodies commonly precede any change in TSH or in how someone feels by a long time -- which is the argument for measuring them early rather than waiting.
Lower: Negative antibodies are the desired result and carry no symptoms.
- Thyroid Peroxidase Antibodies (TPOAb)emerging evidence
via Vitamin D · 6 studies, 3 in people
What people often notice when this marker sits outside the usual range
Higher: Often NONE for years -- antibodies commonly precede any change in TSH or in how someone feels by a long time.
Lower: Negative antibodies are the desired result.
- Thyroglobulin Antibodies (TgAb)emerging evidence
via Vitamin D · 6 studies, 3 in people
Meta-analyses show reduced antibody titres, especially in those starting out deficient.
What people often notice when this marker sits outside the usual range
Higher: Same picture as TPO antibodies -- frequently silent for years, then the hypothyroid symptoms appearing while TSH still reads normal.
Lower: Negative is the desired result.
- Thyroid Peroxidase (TPO) and Thyroglobulin (Tg) Antibodiesemerging evidence
via Vitamin D · 6 studies, 3 in people
Meta-analyses show reduced antibody titres, especially in those starting out deficient [EMERGING].
What people often notice when this marker sits outside the usual range
Higher: In an autoimmune panel these are here because THYROID AUTOIMMUNITY IS THE COMMONEST AUTOIMMUNE CONDITION THERE IS, and it clusters with everything else on this panel.
Lower: Negative is the desired result.
- Secretory IgA (sIgA)emerging evidence
via Bovine colostrum / IgG · 6 studies, 3 in people
What people often notice when this marker sits outside the usual range
Higher: Interpreted by some practitioners as an active mucosal immune response to a pathogen or to food antigens.
Lower: Frequent gut infections and food-borne illness that hits harder than it does other people.
- eGFR, Creatinine & BUNemerging evidence
via Vitamin D · 7 studies, 2 in people
What people often notice when this marker sits outside the usual range
Higher: Later: swelling in ankles and around the eyes, foamy urine, fatigue, poor appetite, itching, night urination, high blood pressure.
Lower: A low creatinine usually reflects low muscle mass rather than excellent kidneys, and in older adults it can hide meaningfully reduced filtration.
- Leptinemerging evidence
via Vitamin D · 5 studies, 2 in people
What people often notice when this marker sits outside the usual range
Higher: Hunger that does not switch off after an adequate meal -- the signal is present but not being heard.
Lower: Persistent hunger, cold hands and feet, low mood and stalled menstrual cycles -- the low-energy-availability pattern seen in restrictive eating and in over-training.
- Thyroid-Stimulating Hormone (TSH)emerging evidence
via Vitamin D · 3 studies, 2 in people
What people often notice when this marker sits outside the usual range
Higher: Cold all the time, especially hands and feet, and needing more layers than everyone else in the room.
Lower: Racing or irregular heartbeat, palpitations, waking at night with the heart pounding.
- Urinalysis (Appearance, pH, Specific Gravity, Protein, Glucose, Ketones, Blood & Microscopic Findings)emerging evidence
via Vitamin D · 4 studies, 1 in people
What people often notice when this marker sits outside the usual range
Higher: KETONES: fasting, low-carbohydrate eating, or illness.
- Leademerging evidence
via Vitamin C · 3 studies, 1 in people
What people often notice when this marker sits outside the usual range
Higher: In adults, usually SILENT at the levels now common.
Lower: No symptoms. Lead has no biological function -- there is no deficiency, and lower is always better.
- Bone Health: DEXA / T-score, CTX, P1NPmixed evidence
via Vitamin D · 795 studies, 345 in people
Required for intestinal calcium absorption.
What people often notice when this marker sits outside the usual range
Higher: A high T-score is favourable; very high values occasionally reflect degenerative change in the spine artificially inflating the reading.
Lower: Bone loss is SILENT until a fracture.
- Vitamin D, Calcium, and Parathyroid Hormone (PTH)mixed evidence
via Vitamin D · 795 studies, 345 in people
[SOLID for correcting a true deficiency, EMERGING/mixed for fracture prevention at low doses in already-replete women].
What people often notice when this marker sits outside the usual range
Lower: CALCIUM LOW: tingling around the mouth and in fingers, muscle cramps and twitching, irritability.
- hs-CRP (High-Sensitivity C-Reactive Protein)mixed evidence
via Vitamin D · 9 studies, 8 in people
What people often notice when this marker sits outside the usual range
Higher: A high hs-CRP reflects low-grade inflammation SOMEWHERE -- you tend to feel the underlying cause (a cold, a flare, a sore joint, poor sleep, extra weight) rather than the CRP itself.
Lower: A low hs-CRP is favourable and simply reflects little systemic inflammation at the moment of the draw.
- hs-CRP (High-Sensitivity C-Reactive Protein)mixed evidence
via Vitamin D · 9 studies, 8 in people
What people often notice when this marker sits outside the usual range
Higher: hs-CRP is non-specific -- read it as a trend and in context, never as a stand-alone verdict.
Lower: A low hs-CRP is favourable and simply reflects little systemic inflammation at the moment of the draw.
- Glucose (Fasting)mixed evidence
via Vitamin D · 13 studies, 6 in people
Serum 25(OH)D associated with islet function; supplementation improved insulin sensitivity in impaired fasting glucose.
What people often notice when this marker sits outside the usual range
Higher: Waking at 3am, often with a racing heart -- 'why do i wake up at 3am every night'.
Lower: Shakiness, sweating, sudden anxiety and difficulty concentrating that resolve within minutes of eating.
- Fasting Insulinmixed evidence
via Vitamin D · 13 studies, 6 in people
What people often notice when this marker sits outside the usual range
Higher: A high fasting insulin is one of the EARLIEST signals of insulin resistance -- insulin climbs to keep glucose normal for years before glucose itself rises.
Lower: A low fasting insulin, with a normal glucose, generally reflects good insulin sensitivity -- the favourable direction.
- Fasting Glucosemixed evidence
via Vitamin D · 13 studies, 6 in people
What people often notice when this marker sits outside the usual range
Higher: A high fasting glucose is often silent early -- the classic high-sugar symptoms (excess thirst, frequent urination, fatigue, blurred vision) tend to appear later and higher.
Lower: A genuinely low glucose (hypoglycaemia) can cause shakiness, sweating, irritability, hunger and lightheadedness -- but a low-normal fasting value in a healthy person is usually favourable.
- Fasting Insulinmixed evidence
via Vitamin D · 13 studies, 6 in people
What people often notice when this marker sits outside the usual range
Higher: Must be drawn fasting to be interpretable, and read alongside glucose (as HOMA-IR), never in isolation.
Lower: A low fasting insulin, with a normal glucose, generally reflects good insulin sensitivity -- the favourable direction.
via Vitamin D · 13 studies, 6 in people
What people often notice when this marker sits outside the usual range
Higher: Because it is built from fasting insulin, it carries that assay's variability -- interpret the trend on one lab, not an absolute number.
Lower: A low HOMA-IR (roughly under 2.0) is commonly read as insulin-sensitive -- the favourable direction, though the cutoff is population-dependent.
- Fasting Glucosemixed evidence
via Vitamin D · 13 studies, 6 in people
What people often notice when this marker sits outside the usual range
Higher: A high fasting glucose is often silent early -- the classic high-sugar symptoms (excess thirst, frequent urination, fatigue, blurred vision) tend to appear later and higher.
Lower: A genuinely low glucose (hypoglycaemia) can cause shakiness, sweating, irritability, hunger and lightheadedness -- but a low-normal fasting value in a healthy person is usually favourable.
- Complement C3 and C4mixed evidence
via Vitamin D · 9 studies, 5 in people
What people often notice when this marker sits outside the usual range
Higher: C3 and C4 are acute-phase proteins and rise with ordinary inflammation and infection.
Lower: Persistently low complement with recurrent bacterial infections may instead indicate an inherited deficiency.
Lab results are interpreted by a qualified clinician who knows your history. Nothing here diagnoses anything or replaces that conversation.
No product works in isolation
Every cell function above -- Sense, Exchange, Transform, Build, Maintain, Adapt -- needs the same broad base of optimal micronutrient levels running underneath it, all the time. Colostrum Defense is not a stand-alone fix; it is one piece that plugs into that larger system. The foundation comes first, and this supports it.
Stacks well with
Pick your goal -- here is what Colostrum Defense pairs with for each. Nothing works in isolation; these share the same systems.
For Gut Health
For Immune
Foundational, or targeted?
Not everything in the shop is meant to be taken forever. Some products here are foundational -- a daily nutrient base built for long-term, ongoing use. Others are targeted -- shorter-term support for a specific season, not a lifelong habit. If you are not sure which one this is, that is a fair question to ask us before you buy.
Learn more, on your terms
Do not take our word for it -- go read. Each topic below opens a pre-loaded search so you can explore the nutrient, the mechanism, or the device for yourself.
Search the full studies libraryHow to use it
Mix one stick into 6 to 8 ounces of water or another beverage once daily. If you have a milk allergy, this product is not for you since it contains dairy-derived colostrum.
Where to get it
Ready when you are. This link takes you to the official, verified source for this product.
Get Colostrum DefenseThe studies
See the research behind the science we point to.
Explore studiesThe blog
Plain-language reads on how it all fits together.
Read the blogOptimal nutrients are the definition of longevity
Long-term cell function depends on having what it needs, at the level it needs it, for as long as it needs it. That is the whole thesis behind everything we point you to here.
When you buy through our links, we earn a small commission -- and that is what funds all the free education here. It never costs you more. Products are not intended to diagnose, treat, cure, or prevent any disease.
Colostrum Defense is a once-daily stick pack pairing bovine colostrum standardised to 10% IgG with an LC-Plasma postbiotic and vitamins C and D3. IgG is the antibody-like protein concentrated in the first milk a mammal produces, and the formula is aimed at the gut barrier and everyday immune resilience.
FAQ
What does Colostrum Defense support?
It supports the gut barrier and normal mucosal immune function, and supplies vitamins C and D3 which support normal immune system function.
How do I take it?
Empty one stick pack into water or stir it into a drink once a day, per the label. A consistent daily habit suits it better than occasional use.
What makes it different?
The colostrum is standardised to a stated IgG percentage rather than sold as unquantified colostrum, and it is combined with a postbiotic and two immune-relevant vitamins instead of standing alone.