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What is Bovine Colostrum: Benefits, Nutrition, Uses, and Potential Side Effects

Sarika Jassal
Written by
Suhani Sharma
Edited by
Dr. Surangama Lehri
Medically Reviewed by
Published: April 21, 2025
Last Reviewed: July 29, 2026
Estimated Reading Time: 11 minutes
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What is Bovine Colostrum: Benefits, Nutrition, Uses, and Potential Side Effects
Key Takeaways: 
  • Bovine colostrum is a cow's first milk, rich in antibodies and growth factors. 

  • Most potent within 6 hours of birth. 

  • May support gut repair, immunity, respiratory health, and exercise recovery. 

  • Typical dose: 10-20 g per day. 

  • Skip it if lactose intolerant, allergic to dairy, pregnant, or have a hormone-sensitive cancer. 

  • Choose grass-fed, early-extraction, third-party tested products. 

Bovine colostrum is the nutrient-rich milky fluid produced by cows for the first few days after they give birth. It contains high levels of nutrients and antibodies that help fight infections and support a young one’s growth. 

Also known as liquid gold, miracle milk, and nature’s first food, colostrum is thicker than regular milk and is yellow in color.   

Though colostrum supports newborns’ growth, development, and immune systems, recently, a number of adults have turned to bovine colostrum supplements to support their overall health.   

Colostrum is the latest supplement trend, causing a buzz across social media platforms This article reviews the benefits, nutrition, uses, and potential side effects of bovine colostrum supplements. 

What is Bovine Colostrum? 

Colostrum is the first milk produced by mammals, including humans, shortly after giving birth. For humans, it’s produced within the first 0-72 hours post-birth, while cows produce colostrum for roughly the first 3 days after calving. But its quality drops fast during that window.  

Antibody levels are highest in the first 6 hours after birth, which is why dairy farms try to collect it as early as possible. 1 

This rich, thick fluid is loaded with essential nutrients, antibodies, growth factors, and antimicrobial peptides, all crucial for newborns' survival and development. Since newborns have immature immune systems, the high concentration of antibodies in the colostrum plays a vital role in helping fight infections and supporting early growth.  

Bovine colostrum, or cow's first milk, shares similar properties but is particularly potent. Because of its impressive health benefits, bovine colostrum has found a place in human health supplements, making it a popular natural supplement for boosting overall health and vitality. 

Bovine Colostrum Nutrition Facts 

Bovine colostrum is more nutrition-dense and has higher levels of bioactive compounds than regular milk It's packed with essential nutrients that promote growth, immune support, gut health, and overall health. Bovine colostrum is especially rich in IgG antibodies, far more concentrated than in human colostrum. 2  

Here’s a breakdown of its key nutritional constituents: 

1. Proteins & Peptides 

Bovine colostrum is rich in proteins, especially immunoglobulins and casein. Immunoglobulins are the antibodies that help support immune function Casein, a significant protein, aids in the absorption of other nutrients and has bioactive properties. There are two types of proteins in bovine colostrum: 

    aWhey Proteins: Soluble proteins including immunoglobulins (antibodies) and lactoferrin, which helps fight bacteria. 

    b. Casein: The main protein in milk, which slows digestion and helps the body absorb other nutrients.  

2. Vitamins and Minerals 

 Bovine colostrum contains significant levels of Vitamins A, C, E and B-complex, along with minerals like calcium, iron, copper, magnesium, zinc, manganese, phosphorus, potassium. Together these support bone health, antioxidant activity, and immune function.. 

3. Growth Factors 

Bovine colostrum contains several growth factors, natural compounds that help repair tissue, support healing, and aid gut development. These include: 

  • Insulin-Like Growth Factors (IGF-I and IGF-II): Support muscle growth and cell repair. 

  • Epidermal Growth Factor (EGF): Helps repair the gut lining. 

  • Transforming Growth Factors (TGF-α and TGF-β): Support gut growth and wound healing. 

  • Platelet-Derived Growth Factor (PDGF): Helps heal injuries, including ulcers. 

  • Vascular Endothelial Growth Factor (VEGF): Supports the formation of new blood vessels for tissue repair. 

  • Milk Fat Globule-Epidermal Growth Factor (MFG-E8): Supports immune function and helps clear damaged cells. 

4. Fatty Acids 

Bovine colostrum contains healthy fats that provide energy and support cell structure. It has a higher concentration of short-chain and medium-chain fatty acids than regular milk. The fat in the colostrum is not only a source of energy but also contains bioactive components that support brain development. The fatty acid composition of colostrum is approximately: 

  • 65-75% saturated fat 

  • 24-28% monounsaturated fat 

  • 4-5% polyunsaturated fat 

5. Hormones 

Bovine colostrum contains natural hormones including prolactin, oxytocin, thyroid hormones, estrogen, progesterone, growth hormone, and leptin, that support growth, metabolism, and development, especially in newborn calves. Its trace estrogen content is also why it's not recommended for anyone with a hormone-sensitive cancer 

6. Antimicrobial Factors 

Colostrum contains natural compounds that help fight harmful bacteria and support a healthy gut microbiome. These include: 

  1. Immunoglobulins (IgG): The main antibody in colostrum. It helps the body recognize and fight off harmful pathogens. 

  1. Lactoferrin: Helps block the growth of harmful bacteria like E. coli and Salmonella. 

  1. Lysozyme and Lactoperoxidase: Two enzymes that also help break down and slow the growth of harmful bacteria. 

  1. Oligosaccharides: Support the growth of good gut bacteria and help block harmful bacteria from taking hold. 

7. Cytokines and Immune Regulators 

Bovine colostrum has immune cells like B and T lymphocytes, macrophages, and neutrophils, which help fight infections and keep immune response balanced 

8.  Carbohydrates 

Colostrum contains different types of sugar, including lactose, oligosaccharides, and glycoproteins. Lactose is the natural sugar found in milk, and it provides the body with an energy source.  

Some of these sugars, like 3′-sialyl lactose (3′SL) and 6′-sialyl lactose (6′SL), along with a protein called glycomacropeptide (GMP), help beneficial bacteria like Bifidobacteria grow. 

What are the Benefits of Bovine Colostrum 

Due to its rich nutritional profile, bovine colostrum is gaining attention for its potential health benefits, including enhanced immune function, gut health support, and overall well-being. Check below for the list of health benefits of bovine colostrum: 

1. Supports Gut Health  

Bovine colostrum supplements play a significant role in promoting gut health. Its growth factors and antibodies help protect the intestinal lining, which may reduce intestinal permeability, also known as leaky gut. 3 

Studies suggest that colostrum aids in healing the gut by: 

  • Helping calm gut inflammation 

  • Supporting the regeneration of the gut lining 

  • Acting as a natural prebiotic, feeding beneficial gut bacteria 4 

2. Supports Immune Function 

Bovine colostrum is rich in bioactive compounds such as antibodies (immunoglobulins), lactoferrin, and growth factors. These components help strengthen the immune system. These compounds: 

  • Activate key immune cells, including lymphocytes, macrophages, and dendritic cells, to help fight infection. 

  • Increase interleukin-10, a compound that helps balance immune response and prevent excess inflammation. 

  • May help lower infection risk, especially in preterm babies or people with weaker immune systems 

3. Supports Respiratory Health 

Research suggests that bovine colostrum supports respiratory health by strengthening immune defenses and calming inflammation in the airways. 5 

  • Its antibodies and lactoferrin help neutralize pathogens before they cause infection. 

  • Its growth factors help repair the lining of the airways. 

  • Its natural sugars make it harder for bacteria to stick to respiratory surfaces. 

Together, these effects may reduce how often and how severely you catch colds and upper respiratory tract infections (URTIs).6 

4. May Enhance Exercise Performance 

Bovine colostrum may help improve athletic performance and speed up recovery after exercise. 7 

  • Its antibodies and lactoferrin may help lower the risk of upper respiratory tract infections, common among athletes during intense training. 

  • Its growth factors, including IGF-1, support muscle repair and help reduce post-exercise inflammation.5 

  • It may also support long-term muscle growth, bone strength, and better nutrient absorption for recovery. 

5. May Support Skin Health (Evidence Still Limited) 

Colostrum contains growth factors like EGF and TGF-β, which play a role in skin cell renewal and collagen production. This is why colostrum sometimes shows up in skin health and anti-aging supplement formulas.1 

That said, this benefit is based on how these growth factors behave in the body generally, not on direct clinical trials of oral bovine colostrum for skin outcomes. If skin health is your main goal, look for ingredients with dedicated human trials behind them, and treat colostrum's role here as a possible bonus rather than a primary reason to supplement. 

Benefits of Colostrum for Pets 

Bovine colostrum isn't just beneficial for humans; it can also provide significant health benefits for pets, including dogs, cats, and even horses. Its rich nutritional profile supports their immune system,  digestion, and overall well-being. 

Colostrum for pets is particularly beneficial for animals that are: 

  • Recovering from illness or surgery 

  • Dealing with a weakened immune system 

  • Under stress. 

Note: As with any supplement, it's essential to consult your veterinarian before giving your pet bovine colostrum, especially if the pet has any underlying health conditions or is on medication. 

How Much Bovine Colostrum Should You Take? 

There's no single standardized dose.  

  • Clinical studies have used anywhere from 1 g to 60 g per day, depending on the health goal and how long the study ran.  

  • Many general wellness routines fall in the 10-20 g per day range. 2 

Important Note: If you're new to colostrum, start at the lower end and increase gradually based on how your body responds.

Good To Know: Colostrum supplements typically come as powder, capsules, or pills. Powder is often preferred for gut health use since it mixes easily and allows flexible dosing. Capsules and pills are more convenient for daily, on-the-go use. 

For guidance on when during the day to take it, see Best Time to Take Colostrum for Maximum Benefits. 

Bovine Colostrum Side Effects & Who Should Avoid 

Bovine colostrum is generally considered safe for consumption. Most clinical trials show bovine colostrum to be well-tolerated, with a few reports of mild gastrointestinal discomfort (nausea or gas) or skin rash. 

There is limited research on who should consider avoiding bovine colostrum; however, here are key groups that should refrain from consuming it: 

  • Those allergic to cow’s milk   

  • Lactose intolerant individuals 

  • Preterm infants 

  • Pregnant & breastfeeding women 

  • Individuals with hormone-sensitive cancers (such as breast, ovarian, or uterine cancer), since bovine colostrum contains trace amounts of naturally occurring estrogen. 8 

Always ask your doctor or healthcare professional prior to beginning any new supplements. 

Bovine Colostrum Interactions with Other Medications 

Bovine colostrum supplements are generally considered safe for most individuals. There are no well-documented interactions with medications, foods, or other supplements. However, since the research is limited, potential interactions can’t be entirely ruled out.  

Bovine colostrum contains milk proteins that could trigger allergic reactions. Therefore, individuals with dairy allergies should avoid it. We recommend consulting a healthcare provider before incorporating colostrum supplements, particularly for those with underlying health conditions or those taking medications. 

How to Select the Best Bovine Colostrum Supplement 

The best bovine colostrum supplement comes from grass-fed, hormone-free cows, is collected within 6 hours of calving, processed at low heat to protect its bioactive compounds, and verified through third-party testing. 

Here's what to check for before choosing a bovine colostrum powder or capsule: 

  1. Source and Farming Practices: Opt for colostrum sourced from grass-fed cows, as this can enhance the supplement's nutritional profile. 

  1. Extraction Time: Colostrum collected within the first 6 hours after a cow gives birth holds onto far more IgG antibodies than colostrum collected later. Look for brands that specify their extraction window. 

  1. Hormone and Antibiotic-Free: To avoid unwanted residues, ensure the product comes from cows not treated with hormones or antibiotics. 

  1. Ethical Collection Methods: Choose brands that prioritize the calves' nutritional needs before collecting colostrum for supplements, ensuring ethical practices. 

  1. Processing Techniques: Look for supplements processed using low-temperature methods that preserve bioactive compounds. 

  1. Purity and Additives: Select products free from unnecessary fillers, additives, and artificial preservatives to ensure you're consuming pure colostrum. 

  1. Transparency and Testing: Ensure the supplement has undergone third-party testing for quality and purity, assuring its contents. 

  1. Dietary Considerations: Check that the label mentions the correct information about any allergies. If you're lactose intolerant or have dairy sensitivities, consult with a healthcare provider before starting colostrum supplements, as they contain dairy proteins.

A Note on Wellness Extract Bovine Colostrum  

Wellness Extract's bovine colostrum is a genuine 6-hour extract, sourced from grass-fed, hormone-free cows, and processed using low-heat methods to preserve bioactive compounds. It's third-party tested for purity and contains no artificial fillers. 

The Bottom Line 

Bovine colostrum is a nutrient-dense supplement, packed with antibodies, growth factors, and other bioactive compounds that go well beyond what's in regular milk. Research backs real benefits for gut health, immune function, respiratory health, and exercise recovery. 5 Skin health is a promising addition, but the evidence there is still limited. 

There's no single right colostrum dose. It's best to start low and adjust based on how your body responds. Most healthy adults tolerate bovine colostrum well though you must always check with your doctor before adding a supplement to your routine.  

If you’re considering adding bovine colostrum supplements to your routine, choose high-quality, ethically sourced and third-party tested product for the best results  

Frequently Asked Questions 

Q1: Can children take bovine colostrum?  

Some products are marketed for kids, but there isn't solid research on the right dose for children. Check with a pediatrician before giving it to a child. 

Q2: Should you take bovine colostrum on an empty stomach or with food?  

Both work, but taking it on an empty stomach may help the bioactive compounds reach your gut lining faster, without competing with food for absorption.  

Q3: How long is it safe to take bovine colostrum supplements?  

Most clinical studies run for a few weeks to a few months, without major safety concerns showing up in that window. Research on longer-term use is limited, so check with a doctor if you're planning to take it for an extended stretch. 

Q4: How should you store bovine colostrum powder or capsules? 

Keep it in a cool, dry place, away from direct sunlight. Once opened, reseal the container tightly and follow the expiration date on the label. 

Q5: Is bovine colostrum vegan or vegetarian-friendly? 

No. It's a dairy product collected from cows, so it isn't suitable for a vegan diet. It may work for some vegetarians, depending on personal dietary choices. 

Q6: What's the difference between bovine colostrum and lactoferrin supplements? 

Lactoferrin is just one of many proteins found in bovine colostrum. Colostrum supplements give you the full range of antibodies, growth factors, and nutrients, while lactoferrin supplements isolate just that one protein for a more targeted effect. 

References 

  1. Arslan, A., Kaplan, M., Duman, H., Bayraktar, A., Ertürk, M., Henrick, B. M., ... & Karav, S. (2021). Bovine colostrum and its potential for human health and nutrition. Frontiers in Nutrition, 8, 651721. https://pmc.ncbi.nlm.nih.gov/articles/PMC8255475/  

  1. Guberti, M., Botti, S., Capuzzo, M. T., Nardozi, S., Fusco, A., Cera, A., et al. (2021). Bovine colostrum applications in sick and healthy people: A systematic review. Nutrients, 13(7), 2194. https://www.mdpi.com/2072-6643/13/7/2194 

  1. Eslamian, G., Ardehali, S. H., Baghestani, A. R., & Shariatpanahi, Z. V. (2019). Effects of early enteral bovine colostrum supplementation on intestinal permeability in critically ill patients: A randomized, double-blind, placebo-controlled study. Nutrition, 60, 106-111. https://www.sciencedirect.com/science/article/abs/pii/S0899900718305185 

  1. Ramani, A., Taherabbas, S., & Manik, S. (2024). Bovine colostrum as a promising nutraceutical: a systematic review. Sustainable Food Technology, 2(3), 531–547. DOI: 10.1039/D3FB00256J. https://pubs.rsc.org/fb/article/2/3/531/808905/Bovine-colostrum-as-a-promising-nutraceutical-a 

  1. Baśkiewicz-Hałasa, M., Stachowska, E., Grochans, E., Maciejewska-Markiewicz, D., Bühner, L., Skonieczna-Żydecka, K., & Hałasa, M. (2023). Moderate dose bovine colostrum supplementation in prevention of upper respiratory tract infections in medical university students: A randomized, triple blind, placebo-controlled trial. Nutrients, 15(8), 1925. https://pmc.ncbi.nlm.nih.gov/articles/PMC10146600/ 

  1. Durkalec-Michalski, K., Główka, N., Podgórski, T., Woźniewicz, M., & Nowaczyk, P. M. (2024). The effect of 12-week high-dose Colostrum Bovinum supplementation on immunological, hematological and biochemical markers in endurance athletes: a randomized crossover placebo-controlled study. Frontiers in Immunology, 15, 1425785. https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2024.1425785/full 

  1. Davison, G. (2021). The use of bovine colostrum in sport and exercise. Nutrients, 13(6), 1789. https://pmc.ncbi.nlm.nih.gov/articles/PMC8225123/ 

Disclaimer: This article is for informational purposes only and is not intended to replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider regarding any medical concerns or conditions.

About the Authors
Sarika Jassal
Author
Sarika Jassal
Sarika is a wellness content writer with an MA in English and a B.Tech background. She specializes in healthcare and supplement topics, turning complex research into clear, evidence-based articles readers can trust.
Dr. Surangama Lehri
Medical Reviewer
Dr. Surangama Lehri
Dr. Lehri holds a Master's in Dental Surgery (MDS) in Oral Medicine and Radiology. With experience in manuscript writing and clinical-data review, she ensures content is medically accurate and clear.