Gut and Immune
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Forty billion CFU from four strains named on the label.
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Gut and Immune
Colostrum
Bovine Colostrum PowderUnflavored powder · 30 servings
- 2.3 g bovine colostrum per scoop
- 575 mg immunoglobulin G (25%)
- Contains milk
Coming soon
This product is not on sale yet.
One container is 30 servings: about 30 days at the label amount.
Contains milk. WADA does not recommend colostrum for athletes who are drug tested.
Contains: Milk.
- The manufacturer's lab report covers heavy metals and microbes, but not strength. What that means
The whole label
What’s in it
| Serving size 1 scoop (2.3 g) | ||
| Servings per container 30 | ||
| Amount per serving | Amount | % Daily Value** |
|---|---|---|
| Calories | 10 kcal | |
| Calcium | 20 mg | 2%** |
| Sodium | 5 mg | <1%** |
| Potassium | 25 mg | <1%** |
| Bovine Colostrum (25% Immunoglobulin G) | 2,300 mg | *** |
| Immunoglobulin (IgG) | 575 mg | *** |
| **Percent Daily Value is based on a 2,000 calorie diet.***Daily Value (DV) not established. | ||
- Contains:
- Milk (Colostrum)
- Form
- Powder, unflavored
- Contents
- 2.43 oz (69 g)
- Servings
- 30 (1 scoop (2.3 g) each)
- Lasts
- About 30 days at the label amount
- Manufactured in
- USA, according to the manufacturer. Where the ingredients come from is not stated.
- Allergens
- Milk
- Manufacturer states
- gluten-free, vegetarian
About the ingredients: Colostrum
Directions
How to take it
Mix one scoop in 6 to 8 oz of cold water or any cold drink and drink within 10 minutes.
Directions on the label
As a dietary supplement, adults use one (1) scoop of powder in 6-8 oz (177-237ml) of cold water or favorite beverage. Consume within 10 minutes of mixing
Label warnings
Do not exceed recommended dose. Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical condition should consult a physician before using this or any dietary supplement. KEEP OUT OF THE REACH OF CHILDREN. DO NOT USE IF SAFETY SEAL IS DAMAGED OR MISSING. STORE IN A COOL, DRY PLACE.
Graded honestly
What the evidence says
Bovine colostrum is the first milk a cow makes after calving, dried to a powder. One scoop gives 2.3 g, with 575 mg of the antibody immunoglobulin G (IgG). Most human research used 10 to 20 g a day. At doses close to this product's, two small trials in athletes found a tighter gut barrier, while a larger trial in healthy adults found no change in immune measures.
How it works
Colostrum contains antibodies (mostly IgG), lactoferrin and growth factors, along with ordinary milk proteins and some lactose. Cow antibodies are unlikely to be absorbed intact into the human bloodstream, so any effect is thought to happen inside the gut. Hard exercise makes the gut lining more permeable for a while, and in trials colostrum has blunted that rise. How well a given powder works may depend on how soon after calving it was collected and how it was processed, because the active proteins fall quickly over the first few days and are sensitive to heat.
The dose in this product
This product provides 2.3 g a day, with 575 mg of IgG. Most human trials used 10 to 20 g a day.
How that compares with the studiesHide the comparison
Gut barrier during exercise: the best-known trials gave 20 g a day for 2 weeks and saw a smaller rise in gut permeability after hard exercise. Two small trials used 1 g a day (500 mg twice daily) for 20 days in athletes and also saw lower permeability. These are the basis for the one benefit above.
In the second of them, colostrum collected 72 hours after calving had no effect, while colostrum collected at 2 or 24 hours did. Some trials at high doses found no effect. Immune measures: in 138 healthy adults aged 40 to 80, 1.2 g a day of a colostrum concentrate (about 500 mg of immunoglobulins, close to this product) for 10 weeks changed none of the immune measures tested.
No immune claim is made. Upper respiratory symptoms, as context only: a meta-analysis of 5 trials in 152 exercising adults found fewer days with symptoms at 10 or 20 g a day for 8 to 12 weeks. It judged four of the five trials at moderate or high risk of bias.
One trial at 0.5 to 1 g a day in 158 university students found no significant difference overall, with a difference only in the medical-student subgroup. These are illness outcomes and are not claims for this product. Strength, body composition and recovery: a 2021 review describes the evidence as limited.
No claim is made.
- Early evidence
Helps maintain normal gut barrier function in athletes during hard training
Two small placebo-controlled trials from one research group, in 16 and 31 athletes, found that 1 g a day of freeze-dried colostrum for 20 days lowered a urine-test measure of gut permeability. A 2024 meta-analysis of 10 trials also found lower permeability markers, with very inconsistent results between trials, and most colostrum trials used 10 to 20 g a day. The 1 g trials used colostrum collected within 24 hours of calving. This label does not state collection time or processing, so the match is uncertain. [1][2][3][4]
Strong evidence: many human trials agree, at the amount in this product. Moderate evidence: human trials mostly agree, but they are small, short or mixed. Early evidence: a few small human studies or lab work. Promising, not proven.
Safety
Who it is for, and who should ask first
Do not use if
- You have a milk allergy. Colostrum is a milk product and contains milk proteins.
Good fit if
- Athletes in periods of heavy training
- Adults who tolerate dairy
- People comfortable with early evidence from small studies
Ask your doctor first if
- You are lactose intolerant. Colostrum contains lactose, and the amount per scoop is not stated on the label
- You are pregnant or nursing, under 18, or have a known medical condition (label caution)
- You compete in drug-tested sport. WADA does not prohibit colostrum but does not recommend it
Interactions
- No drug interactions have been established. The trials we reviewed did not look for them, so tell your doctor or pharmacist if you take prescription medicines.
Possible side effects
- Mild stomach upset, reported in one trial
- Gas, bloating or loose stools are possible in people who are sensitive to lactose
- In a 107-day trial at 0.5 to 1 g a day, digestive symptoms were no more common than with placebo
Upper limit
No tolerable upper intake level has been set. Trials have used 10 to 20 g a day for 8 to 12 weeks, and reviewers describe colostrum as generally well tolerated while noting that side effects were poorly reported (Jones 2016). This product provides 2.3 g a day, and the label says not to exceed the recommended dose.
Combining with our other products
Colostrum is a dairy product. It can be mixed with Collagen Peptides or Plant Protein, but the shake is then no longer dairy-free. It adds only 20 mg of calcium, so there is no mineral overlap of concern.
There is no evidence that taking it with Probiotic 40, Daily Probiotic or L-Glutamine adds benefit.
Lab reports
What the lab report covers
We hold the manufacturer’s lab report for a production lot of this product. It reports on the manufacturer’s own lot, not on the container you receive. This is what it covers and what it leaves out.
No IgG or protein result is reported.
- Strength of the main ingredient
- Not measured
- Identity test
- Reported
- Heavy metals
- Measured
- Microbes
- Tested
- Lab named on the report
- No
- Latest report
- February 2026
Answers
Questions people ask
Is 2.3 g a day enough to do anything?
It is far less than most studies used, which was 10 to 20 g a day. Two small trials in athletes found an effect on a gut barrier test at 1 g a day, which is why that single benefit is graded as early evidence. Outside that setting, there is no good evidence for this dose.
Will it support my immune system?
We do not claim that. In 138 healthy adults, 1.2 g a day for 10 weeks changed none of the immune measures tested. Studies reporting fewer respiratory symptoms in athletes used 10 to 20 g a day, and a supplement may not claim to prevent illness.
Can I take it if I am lactose intolerant or allergic to milk?
Not if you are allergic to milk. It contains milk proteins, including ones that commonly trigger cow's milk allergy. Colostrum also contains lactose. One scoop is small, but the label does not state the lactose content, so start cautiously if you are sensitive.
Can I mix it into coffee or another hot drink?
Follow the label: mix it into cold water or another cold drink and drink it within 10 minutes. The proteins thought to matter in colostrum are sensitive to heat, which is why the colostrum used in the low-dose trials was freeze-dried at low temperature.
Is it allowed in drug-tested sport?
It is not banned. WADA's Prohibited List Q&A says colostrum is not specifically prohibited, but that it may contain growth factors that are prohibited and could affect a test, so WADA does not recommend it. A 2021 review concluded that the balance of studies does not show colostrum raising blood IGF-1. If you are tested, check with your federation first.
Do the antibodies in colostrum get into my blood?
Probably not. Reviewers consider it unlikely that cow antibodies are absorbed intact by human adults. Any effect is thought to happen inside the gut.
How is colostrum different from milk or whey protein?
Colostrum is the first milk after calving. It has more protein and more antibodies than regular milk, and those levels fall quickly over the first two to three days. In the low-dose trials, whey was the placebo.
How long before I notice anything?
You may not notice anything. The low-dose trials ran for 20 days and measured a laboratory marker in urine, not how people felt. No study at this dose has shown a change in symptoms.
Read the studies
Sources
- 1.Hałasa M, Maciejewska D, Baśkiewicz-Hałasa M, et al. Oral Supplementation with Bovine Colostrum Decreases Intestinal Permeability and Stool Concentrations of Zonulin in Athletes. Nutrients. 2017;9(4):370. Open source (opens in a new tab)In 16 mixed martial arts athletes, 500 mg of freeze-dried colostrum twice a day for 20 days lowered the lactulose/mannitol measure of gut permeability compared with whey placebo. The colostrum was collected within 2 hours of calving.
- 2.Hałasa M, Maciejewska-Markiewicz D, Baśkiewicz-Hałasa M, et al. Post-Delivery Milking Delay Influence on the Effect of Oral Supplementation with Bovine Colostrum as Measured with Intestinal Permeability Test. Medicina (Kaunas). 2020;56(10):495. Open source (opens in a new tab)In 31 athletes taking 500 mg twice a day for 20 days, colostrum collected 2 or 24 hours after calving lowered gut permeability, and colostrum collected at 72 hours did not.
- 3.Hajihashemi P, Haghighatdoost F, Kassaian N, et al. Bovine Colostrum in Increased Intestinal Permeability in Healthy Athletes and Patients: A Meta-Analysis of Randomized Clinical Trials. Dig Dis Sci. 2024;69(4):1345-1360. Open source (opens in a new tab)Pooling 10 trials, colostrum reduced two urine-test measures of gut permeability, but results for the main measure varied very widely between trials and a blood marker of gut cell damage did not change.
- 4.Davison G. The Use of Bovine Colostrum in Sport and Exercise. Nutrients. 2021;13(6):1789. Open source (opens in a new tab)Most human trials used 10 to 20 g a day. Evidence is strongest for blunting exercise-related rises in gut permeability and limited for performance and body composition. Products differ in activity, studies do not show raised blood IGF-1, and WADA advises athletes against use. The author has received funding from colostrum suppliers.
- 5.Jones AW, March DS, Curtis F, Bridle C. Bovine colostrum supplementation and upper respiratory symptoms during exercise training: a systematic review and meta-analysis of randomised controlled trials. BMC Sports Sci Med Rehabil. 2016;8:21. Open source (opens in a new tab)In 5 trials (152 exercising adults) of 10 or 20 g a day for 8 to 12 weeks, colostrum was associated with fewer days of upper respiratory symptoms. Four of the five trials had a moderate or high risk of bias, and side effects were poorly reported. An illness outcome.
- 6.Wolvers DA, van Herpen-Broekmans WM, Logman MH, et al. Effect of a mixture of micronutrients, but not of bovine colostrum concentrate, on immune function parameters in healthy volunteers: a randomized placebo-controlled study. Nutr J. 2006;5:28. Open source (opens in a new tab)In 138 healthy adults aged 40 to 80, 1.2 g a day of colostrum concentrate (about 500 mg of immunoglobulins) for 10 weeks had no effect on any immune measure, including vaccine responses.
- 7.Baśkiewicz-Hałasa M, Stachowska E, Grochans E, et al. 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;15(8):1925. Open source (opens in a new tab)In 158 students taking 0.5 to 1 g a day, days with respiratory symptoms did not differ significantly from placebo overall. A difference appeared only in the medical-student subgroup. Digestive side effects matched placebo. One author is paid by the colostrum maker. An illness outcome.
- 8.Playford RJ, Weiser MJ. Bovine Colostrum: Its Constituents and Uses. Nutrients. 2021;13(1):265. Open source (opens in a new tab)Colostrum contains IgG, lactoferrin, growth factors, casein, whey proteins and lactose. Cow IgG is unlikely to be absorbed intact, IgG and growth factors fall quickly in the days after calving, and commercial products differ up to six-fold in laboratory activity. The authors work for a colostrum supplier.
Reviewed 2026-10-01. This page is information, not medical advice.
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*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.