Before a calf ever takes its first bite of grass, its mother has already provided something remarkable: colostrum. It’s the first milk she makes after giving birth, and its unusual mix of nutrients helps explain why people consider it a superfood, too.
Colostrum naturally contains immunoglobulins (antibodies), lactoferrin, peptides, growth factors, and other nutrients. Researchers have also studied bovine colostrum in adults, measuring changes in how the gut lining acts as a barrier and in certain immune responses related to exercise.
We believe that that whole mix is worth keeping together. That’s why our Grass-Fed Colostrum comes from the first milking and retains its naturally occurring fat rather than isolating one part of it. A higher antibody percentage might look impressive on a label, but if it’s achieved by removing fat, you could also be losing fat-soluble vitamins and other naturally occurring compounds. By keeping that fat, we preserve more of the original first milk, so you get its antibodies alongside its natural fats and other nutrients.
Disclaimer: The information in this blog is for educational purposes only. It is not a substitute for professional medical advice. Consult your healthcare provider if you’re seeking medical advice, diagnosis, or treatment. These statements have not been evaluated by the Food and Drug Administration. Our products are not intended to diagnose, treat, cure, or prevent any disease.
Table of Contents
What Is Grass-Fed Colostrum?
Grass-fed colostrum is the early milk produced by cows raised on a grass-based diet. Like all bovine colostrum, it appears immediately after calving, before the cow’s milk gradually shifts toward its mature composition. As milk production progresses, immunoglobulins and lactoferrin gradually decline from the higher levels found in those earliest milkings.
For a newborn calf, colostrum provides early nourishment and immune protection. That natural mix is what makes colostrum different, and it’s why we keep its proteins and fats together.
We source our Grass-Fed Colostrum from grass-fed, pasture-raised cows and use milk collected at the first milking. We then process it at low temperatures and test the finished product for quality.
Why Is Colostrum Different From Regular Milk?
Colostrum and regular milk come from the same cow, but their different compositions suit different stages of a calf’s early life. In the first days after birth, the milk is especially rich in immunoglobulins and other bioactive proteins. As the cow begins producing mature milk, those concentrations fall.
| Component | Bovine colostrum | Mature cow’s milk |
| Immunoglobulins | Particularly concentrated in early milkings | Present at lower levels |
| Lactoferrin | Higher in early colostrum | Present, generally at lower levels |
| Growth factors and peptides | Distinctive early-lactation mixture | Different profile and concentrations |
| Fat, lactose, and other nutrients | Composition varies with time and herd | More stable mature-milk profile |
Why Is Colostrum Called a Superfood?
People call colostrum a superfood because of the unusual mix of nutrients in the first milk. Alongside protein and fat, colostrum contains immunoglobulins, lactoferrin, peptides, vitamins, and minerals. ‘Superfood’ isn’t a scientific designation, but the mix of proteins and nutrients in first milk sets it apart from regular milk.
Lactoferrin binds iron, and researchers have studied how it interacts with microbes and immune cells. Immunoglobulins and growth factors have different biological functions, so reducing colostrum to any one of these compounds would leave out much of its composition.
That’s why we make our colostrum whole and non-defatted. Keeping that mix together gives you colostrum as a food, with its proteins, fats, and other components, rather than one extracted ingredient. In our bovine colostrum benefits guide, we explain those components and the research on them.
What Are the Best-Supported Benefits of Bovine Colostrum?
Colostrum research is most useful when we look at what people actually experienced or what researchers measured. Human studies have focused particularly on gut-barrier function, respiratory symptoms in exercising adults, and responses to demanding training. By contrast, claims about skin, memory, or healthy aging need different evidence.
1. Gut Barrier and Intestinal Permeability
Your intestinal lining has to absorb nutrients while controlling what passes into the rest of your body. Researchers test how well that barrier works by measuring intestinal permeability, which is different from simply asking whether someone feels less bloated.
In a 2024 meta-analysis of ten studies, researchers reported improvements in certain measures of intestinal permeability among people taking bovine colostrum. The studies used different preparations and doses, so they don’t establish a single routine for everyone. They give us evidence about gut-barrier function without proving that colostrum treats digestive disease.
2. Immune Function and Respiratory Illness
Colostrum contains immunoglobulins and other proteins associated with normal immune function. Human trials have also looked at whether supplementation affects respiratory symptoms, especially in people training regularly.
A systematic review of randomized trials in exercising adults reported fewer days with upper-respiratory symptoms among participants receiving bovine colostrum. Because those results come mainly from exercising adults, they don’t establish that colostrum prevents infections in everyone.
Interestingly, fewer days with respiratory symptoms didn’t always come with changes in standard immune markers. That’s why we describe what these trials observed in active adults instead of promising that colostrum will prevent you from getting sick.
3. Exercise Recovery and Training Stress
Hard training can temporarily alter gut permeability and immune activity. That’s made colostrum especially interesting to sports-nutrition researchers, who have tested repeated supplementation during demanding training and acute doses around prolonged exercise.
In a 2026 crossover study, 16 recreationally active men received a large colostrum dose around prolonged exercise. Researchers observed changes in how neutrophils, a type of immune cell, functioned, but the study wasn’t measuring muscle growth or testing our regular 3-gram serving.
With our Grass-Fed Colostrum, you get the whole first-milk mixture, including immunoglobulins, lactoferrin, and its natural fats. Meanwhile, our Grass-Fed Whey provides complete protein for daily nutrition and training. We offer both because colostrum contains distinctive first-milk proteins, while whey supplies complete dietary protein.
What About Skin, Bone, Brain, and Metabolic Benefits?
Colostrum contains compounds that researchers have investigated for their roles in skin, bone, metabolism, and neurological function. Much of that work involves cells, animals, or isolated compounds, so we can’t treat it as proof that a scoop of whole colostrum improves memory, blood sugar, or wound healing in people.
Why Does Grass-Fed Sourcing Matter?
Grass-fed sourcing reflects how the cows are fed and raised. We choose pasture-raised cattle because husbandry and traceable ingredient sourcing matter to the animal foods we make.
The grass-fed designation describes how cattle were raised, but it doesn’t establish that one finished colostrum supplement produces better clinical outcomes than another. That’s why we also prioritize first-milking collection, keeping the natural fat, careful processing, and testing the finished product.
What Makes a High-Quality Colostrum Supplement?
The biggest IgG number isn’t the whole story when you choose colostrum. Immunoglobulins matter, but so do collection, handling, the rest of the food matrix, and how the finished product is verified.
Early Collection
Colostrum changes quickly after birth. In an older study of lactoferrin across lactation, researchers found higher concentrations in the first milking, followed by a sharp decline. That’s one reason we look for first-milking sourcing rather than vague claims about when collection occurred.
Responsible Calf-First Sourcing
The calf comes first, so a responsible supplier should explain how calves receive the colostrum they need before any surplus is collected for human use. You can learn more about responsible sourcing from that explanation than from a vague ‘ethically sourced’ badge.
Processing Temperature
Heat and handling can change the structure of some colostrum proteins. We use low-temperature, low-pressure processing to limit unnecessary alteration of the first-milk ingredient, then rely on finished-product testing rather than processing claims alone.
Third-Party Testing
Independent testing matters because sourcing and processing claims alone can’t verify what’s in the final product. Look for identity checks and testing for microbes, heavy metals, and pesticides. If a brand promotes a specific bioactive component, it should be able to explain how that claim is verified.
Simple Ingredient List
We don’t add fillers or flavorings to our colostrum. Our free-form powder contains only whole, grass-fed colostrum, with its natural fat intact. When you’re comparing brands, don’t choose based on a flashy IgG percentage alone. Instead, look at when it was collected, how it was processed, and whether the finished product was independently tested.
Does Full-Fat Colostrum Matter?
Full-fat, or non-defatted, colostrum retains its naturally occurring fat. Some manufacturers remove fat to change a product’s composition or standardize particular fractions. That doesn’t automatically make it inferior, but it changes what remains of the original food.
We keep our Grass-Fed Colostrum whole and non-defatted, with nothing intentionally removed or added. That means the naturally occurring fat stays alongside immunoglobulins, lactoferrin, and other colostrum components. We keep the original food as intact as practical instead of building the product around one headline percentage.
Is Grass-Fed Colostrum Safe?
Bovine colostrum is a dairy-derived food supplement that’s generally well tolerated in published studies. Still, the clearest exception is cow’s-milk protein allergy, because colostrum naturally contains milk proteins. Anyone with that allergy should avoid bovine colostrum unless a qualified clinician advises otherwise.
Lactose intolerance and milk-protein allergy aren’t the same, and a lower lactose level doesn’t mean colostrum is lactose-free. Pregnant or breastfeeding people, children, and people with significant medical conditions may also need advice specific to their situation.
Can Athletes Take Colostrum?
Colostrum has been studied in exercise settings, and recreationally active adults may choose it as part of their nutrition. Competitive athletes also need to check their governing body’s supplement rules and contamination policies.
Growth factors such as IGF-1 are naturally associated with colostrum, but ingestion isn’t the same as receiving a prohibited performance-enhancing drug. Still, drug-tested athletes should check current regulations and product-specific certification before using any supplement. A product’s general quality testing isn’t a substitute for a sport-specific certification.
How Do You Use Grass-Fed Colostrum?
We offer our colostrum as a free-form powder and in capsules, so you can choose the format that fits your routine. The powder contains 180 grams across 60 servings, or 3 grams per full scoop. Each capsule contains 500 milligrams, and six capsules provide the same 3-gram full serving.
We recommend one serving daily, with gradual introduction when you’re new to colostrum. Stir the powder into water, milk, yogurt, or a smoothie, or take the capsules if you prefer not to mix anything. Cooler or moderately warm liquids are sensible for a food valued partly for heat-sensitive proteins, and the simple daily format makes it easier to use consistently.
Is Grass-Fed Colostrum Worth It?
Yes, grass-fed colostrum is worth considering if you want the whole first-milk food in your routine. Its immunoglobulins, lactoferrin, proteins, and fats naturally occur together, but what ends up in the jar depends on collection and processing.
That’s why we source our Grass-Fed Colostrum from the first milking of grass-fed, pasture-raised cows, keep its natural fat, and test the finished product. Look for those answers before choosing a product by the biggest number on its label.
Why We Keep Our Grass-Fed Colostrum Whole
Grass-fed colostrum is genuinely different from mature milk because its immunoglobulins, lactoferrin, peptides, fats, and growth factors occur together in first milk. Researchers have also studied intestinal-barrier function and certain exercise-related outcomes in adults.
We make our Grass-Fed Colostrum from the first milking of grass-fed, pasture-raised cattle, keep it whole and non-defatted, and process and test it carefully. Colostrum comes naturally whole, so why would we take it apart?
Frequently Asked Questions About Grass-Fed Colostrum
Why is colostrum considered a superfood?
Colostrum is called a superfood because its early-milk composition includes concentrated immunoglobulins, lactoferrin, proteins, peptides, growth factors, and other nutrients. People use the term for its unusual first-milk composition, not as a formal scientific category. Researchers have also examined intestinal permeability and selected exercise-related immune outcomes, which helps explain why people are interested in this unusual first milk.
What are the benefits of grass-fed colostrum?
Grass-fed colostrum contains immunoglobulins, lactoferrin, proteins, and fats naturally found in first milk. Some researchers have reported changes in gut-barrier function and certain exercise-related outcomes in human trials. Still, grass-fed describes how the cattle are raised, and it hasn’t been shown in direct human trials to produce better health outcomes than other well-made bovine colostrum.
Is bovine colostrum a superfood?
It’s reasonable to call bovine colostrum a “superfood” because of its distinctive mixture of immunoglobulins, lactoferrin, peptides, fats, and other naturally occurring nutrients. The term isn’t a clinical classification, but the food itself is unusual. That’s why we focus on preserving that mixture in our colostrum rather than making one ingredient stand in for the whole thing.
Is grass-fed colostrum better than regular colostrum?
Grass-fed describes the cattle’s feeding and raising conditions, not a guaranteed difference in human outcomes. We prefer grass-fed, pasture-raised sourcing because it fits our standards for animal foods. When choosing between finished supplements, we’d also consider collection timing, whether the colostrum is whole or defatted, processing, testing, and dose.
Does colostrum help gut health?
Human studies have reported improvements in certain measures of intestinal permeability after bovine colostrum supplementation, particularly in research involving physically active people. That makes gut-barrier function one of the more promising areas of study, although results depend on the preparation and people tested and don’t establish colostrum as treatment for diagnosed gastrointestinal disease.
Does colostrum support immunity?
Colostrum contains proteins involved in normal immune biology, and some trials in exercising adults have reported fewer days with upper-respiratory symptoms. Because those studies were relatively small and involved specific preparations, the findings are encouraging without establishing that every colostrum product prevents infection.
Uncut Colostrum
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