Ever wondered if colostrum, the “liquid gold” of a newborn’s first feed, can help adults too? Here’s the evidence on colostrum supplements, explained in plain words. Those first sips of mother’s milk do far more than fill a tiny tummy. They help a baby fight germs. We call that first milk colostrum, and many people nickname it “liquid gold.” Now it’s showing up as capsules, powders and drinks for adults too.
Did you know? Cow colostrum has about five times more protein than regular dairy milk [3].
So, do colostrum supplements really work for grown-ups? Let’s walk through the evidence on colostrum supplements in plain words.
Quick Byte: Most colostrum supplements come from cows. Small studies suggest they may help with diarrhea, gut inflammation, and upper respiratory infections (like colds) in some higher-risk groups. But the studies are small, and results don’t always agree [2,3].
What Is Colostrum, and What Does It Do?
Colostrum is the first milk a mother makes after giving birth. It’s packed with antibodies, growth factors and nutrients that protect a newborn [1,3]. Humans make it. So do cows, buffaloes and goats. It’s thick, yellowish and comes in small amounts for a few days before it turns into regular milk [1].
Those first feeds look tiny, and that’s normal. Still, many new moms wonder if their baby is getting enough.
Read this: Is your baby getting enough milk?
What’s Inside Colostrum?
Researchers sort its main parts into three groups [1]:
- Immune factors: These include antibodies (also called immunoglobulins: IgG, IgA, and IgM) and lactoferrin. Antibodies grab germs so your body can clear them. Lactoferrin is a protein that binds iron and helps fight germs.
- Growth factors: These are natural signals that tell tissues to grow and heal.
- Nutrients: Protein, fats, vitamins, and minerals, including copper, iron, zinc, magnesium, and vitamins B12, D, and E [3].
Here’s how they connect. Antibodies fight germs. Growth factors help involved in tissue growth and repair. Nutrients give the body fuel for both jobs [3].
In cow colostrum, one antibody type (IgG) makes up most of the antibodies. In human colostrum, a different type (IgA) leads [1].
Colostrum in Indian Kitchens
In India, families have long cooked cow and buffalo colostrum into puddings like kharvas, junnu and posu [1]. People have also used it as a home remedy for hundreds of years [4].
Colostrum Supplements and Colostrum Benefits: What Research Shows
Colostrum supplements mostly come from cows. Makers dry the colostrum into powder, then sell it as capsules or drink mixes. Heat and processing can reduce the active parts, so how a brand makes it matters [1].
Here’s the evidence on colostrum supplements so far. Scientists have tested colostrum benefits in four main areas.
Colostrum Research on Gut Health and Diarrhea
- Several trials suggest some colostrum products may help in case of certain types of diarrhea, but evidence is limited [2].
- In one trial, 160 children with sudden diarrhea got colostrum or a placebo. After two days, the colostrum group had fewer loose stools and less vomiting. The benefit showed up in diarrhea caused by bacteria (E. coli) and by a virus (rotavirus) [1].
Note: Colostrum doesn’t replace oral rehydration solution or medical care. If a child has repeated vomiting, blood in the stool, a high fever, or signs of dehydration (dry mouth, very little urine), go to the nearest hospital right away [5].
- Researchers are also studying colostrum in inflammatory bowel disease, such as Crohn’s disease and ulcerative colitis. Small studies show promise in lowering inflammation [1].
- Some believe that colostrum can “seal” a leaky gut. While studies in healthy individuals have suggested it might decrease exercise-induced intestinal leakiness, others have found no effect, and some have reported no change or even increased leakiness [1].
The picture is mixed, so it’s too early to call colostrum a gut remedy
Colostrum Benefits for Immunity
Colostrum has antibodies and other immune parts. Scientists think these may also help beyond the gut. Here’s what the research shows [4]:
- Bovine antibodies (IgG) probably don’t enter your blood intact. But there’s growing evidence that colostrum can still affect immune function outside the gut.
- One study found that colostrum supplements reduced the number of flu-like episodes in certain population.
- Athletes in training get more cold-like symptoms. Pooled reviews disagree. One reported fewer cold-like symptoms in training athletes, while another found a lack of evidence for immune benefits in active adults [2,4].
- Respiratory syncytial virus (RSV) is a common virus that gives babies colds and chest infections. Colostrum IgG can bind to and neutralize RSV in lab test, not human trials [1,4].
Experts say we still need larger studies in different age groups. Early results look promising, but they don’t prove colostrum prevents infections. Talk to your doctor before you try it for this purpose.
Colostrum Research on Bone Strength
- Studies in young rats suggest colostrum may raise bone density [4].
- Human trials are few. In one study, older adults who took colostrum while doing strength training got stronger legs and had reduced bone resorption (which means less bone breakdown) [4]. Still, more research is needed to confirm these results.
Evidence on Colostrum Supplements: Safety and Smart Buying
The evidence on colostrum supplements suggests most people tolerate them. Reported side effects are mild. They include gas, bloating and nausea [1].
Who Should Skip Colostrum Supplements
- People with a cow’s milk or dairy allergy. Colostrum comes from milk [2].
- Pregnant or breastfeeding women. Experts advise skipping it because the effects on the fetus aren’t known.
One case report describes a severe allergic reaction in a teen with milk allergy who used a colostrum cream [2]. If you get swelling of the lips or face, a rash, or trouble breathing after taking colostrum, call your local ambulance or go to the nearest hospital right away. Don’t wait it out.
How to Pick Colostrum Supplements Wisely
- Buy from a trusted brand. Quality varies, and some products may hold other ingredients or harmful contaminants.
- Ask your doctor first, especially if you take regular medicines or have a gut condition.
- Don’t skip the basics. Good sleep, balanced meals and regular exercise still build the strongest foundation.
Quick takeaway: Colostrum looks promising, mainly for diarrhea and respiratory infections. But the evidence on colostrum supplements isn’t strong enough to call it a must-have. It isn’t established as a routine supplement for preventing or treating these conditions.
FAQs
1. What is colostrum, and what are its benefits?
Colostrum is the first milk a mother makes after giving birth. It’s rich in antibodies, growth factors, and nutrients that support a newborn’s gut and immune system [1]. Small studies suggest it may help with diarrhea and respiratory infections, but more research is needed [2,4].
2. Can humans drink colostrum milk?
Yes. Newborns drink human colostrum, and in India families cook cow colostrum into dishes like kharvas and junnu [1]. Don’t drink it raw, as raw colostrum can carry germs. Heat treatment cuts germs but also reduces some active parts [1]. Skip it if you have a dairy allergy, and ask your doctor first if you’re unsure.
3. Which antibody is in colostrum?
Cow colostrum is mostly IgG, which makes up about 80-85% of the antibodies in it. Human colostrum is dominated by IgA [1]. Antibodies are proteins that help your body spot and fight germs.
4. Can I drink colostrum every day?
No standard daily dose exists. Studies used different amounts and lengths of time. Researchers still need long-term safety trials [1]. Check with your doctor before taking it every day, especially if you take regular medicines.
5. What are the benefits of taking a colostrum supplement?
Small studies suggest it may ease diarrhea, support gut health, and lower upper respiratory infections [2]. Some athletes may recover slightly faster, but muscle-building results are mixed [3]. Larger studies must confirm these benefits, so talk to your doctor before you start.
6. Is colostrum better than collagen?
They do different jobs, and we couldn’t find studies that compare the two head-to-head. Colostrum research focuses on gut and immune health [2]. A 2026 review found collagen is a structural protein that may help skin, muscles, and joints [6]. Ask your doctor which one fits your goal.
7. What is the best time to take colostrum?
Research hasn’t settled this yet. Experts say the best timing and dose are still unclear. Follow the product label and ask your doctor or pharmacist. If your face or lips swell, or you struggle to breathe after taking it, get emergency care right away.
Disclaimer: This post shares general health information. It doesn’t replace advice from your doctor. Talk to a qualified healthcare provider before you start any supplement.
References:
1. Mehra R, Garhwal R, Sangwan K, Guiné RPF, Lemos ET, Buttar HS, et al. Insights into the research trends on bovine colostrum: beneficial health perspectives with special reference to manufacturing of functional foods and feed supplements. Nutrients. 2022 Feb 4;14(3):659. PMID: 35277018; PMCID: PMC8840100. [cited 2026 Oct 7]. Available from: https://pmc.ncbi.nlm.nih.gov/articles/PMC8840100/ .
2. Memorial Sloan Kettering Cancer Center. Bovine colostrum [Internet]. New York: MSKCC; [updated 2021 Dec 8; cited 2026 Oct 7]. Available from: https://www.mskcc.org/cancer-care/integrative-medicine/herbs/bovine-colostrum
3. McGrath BA, Fox PF, McSweeney PLH, Kelly AL. Composition and properties of bovine colostrum: a review. Dairy Sci Technol. 2016;96:133-58. doi:10.1007/s13594-015-0258-x. [cited 2026 Oct 7]. Available from: https://link.springer.com/article/10.1007/s13594-015-0258-x
4. Playford RJ, Weiser MJ. Bovine colostrum: its constituents and uses. Nutrients. 2021 Jan 18;13(1):265. PMID: 33477653; PMCID: PMC7831509. [cited 2026 Oct 7]. Available from: https://pmc.ncbi.nlm.nih.gov/articles/PMC7831509/
5. WHO. Diarrhoeal disease [Internet]. Geneva: World Health Organization; 2024 Mar 7 [cited 2026 Oct 7]. Available from: https://www.who.int/news-room/fact-sheets/detail/diarrhoeal-disease
6. Ravindran R, Pizzol D, López-Gil JF, Yon DK, Smith L. Collagen Supplementation for Skin and Musculoskeletal Health: An Umbrella Review of Meta-Analyses on Elasticity, Hydration, and Structural Outcomes. Aesthet Surg J Open Forum. 2026 Jan PMCID: PMC12968778.[cited 2026 Oct 7]. Available from: https://pmc.ncbi.nlm.nih.gov/articles/PMC12968778/
(The article is written by Nancy Dixit, Associate Manager, Clinical Health & Content, Medical Affairs, and reviewed by Monalisa Deka, Deputy Manager, Clinical Health & Content, Medical Affairs.)
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