Fresh New Zealand bovine colostrum

What Is Colostrum?

Colostrum is the first milk produced after birth. It is a uniquely complex natural food, created to provide a newborn calf with concentrated nutrition and a broad range of protective and developmental components during its earliest stage of life.

Key takeaways

  • Colostrum is the first milk produced after birth and is naturally different from ordinary milk.
  • It provides the newborn calf with concentrated nutrition and rapid passive antibody protection.
  • Bovine colostrum contains immunoglobulins, proteins, peptides, growth factors, oligosaccharides and other naturally occurring components.
  • MIP uses fresh, never-frozen New Zealand colostrum collected from the first two milkings and verifies 20–25% IgG by batch.
  • Only surplus colostrum is collected after newborn calves have received the colostrum they need.

Colostrum is the first milk produced by a cow after giving birth, specially designed to meet the needs of her newborn calf.

Unlike ordinary milk, it is naturally concentrated in antibodies, particularly immunoglobulin G (IgG) alongside protein, fats, vitamins, minerals, growth factors and other bioactive compounds. Together, these provide the calf with essential nutrition and support during its first critical days of life.

This is especially important because calves are born with very little antibody protection of their own. They rely on colostrum soon after birth to receive maternal antibodies that provide rapid passive immunity while their own immune system develops. Colostrum is therefore much more than simply a calf’s first feed: it is a uniquely concentrated first food, providing both nourishment and vital immune protection at the moment they need it most.

Colostrum is not defined by any single component. It is naturally complex, both nutritionally and in bioactive components.

Immunoglobulins

Antibody proteins including IgG, IgA and IgM, which play an important role in immune defence. IgG is particularly abundant in bovine colostrum.

Proteins and peptides

A diverse group of structural, nutritional and signalling molecules with a wide range of roles within biological processes.

Oligosaccharides

Complex carbohydrates that differ from ordinary sugars and are an expanding area of research.

Minerals

Including calcium, phosphorus, magnesium and zinc, which contribute to a wide range of essential functions within the body.

Lactoferrin

An iron-binding protein studied for its role in immune defence and its antimicrobial and anti-inflammatory properties.

Growth factors

Signalling proteins, including IGF-1 and IGF-2, associated with growth, development and cellular processes.

Vitamins

Including both fat-soluble and water-soluble vitamins, which contribute to normal nutrition and a wide range of functions within the body.

Naturally occurring enzymes

Proteins that support or regulate chemical reactions within biological systems.

More complex than we once understood

Modern research continues to reveal just how complex bovine colostrum is. A 2024 study identified more than 1,000 naturally occurring peptide sequences in the colostrum samples analysed, illustrating the extraordinary molecular diversity contained within this first food.

Colostrum may be produced for a newborn calf, but many of the nutrients and bioactive components found in milk are shared across mammalian species. Their underlying structures and biological functions are often highly conserved, meaning bovine-derived components can interact with human biological processes too. This compatibility is one of the reasons bovine colostrum has become an area of growing interest in human nutrition and supplementation.

When consumed, colostrum interacts first with the digestive system, where components including immunoglobulins, lactoferrin, growth factors, oligosaccharides and bioactive peptides have been studied for their roles in immune function, gut integrity and other physiological processes. Some components act within the gastrointestinal environment, while others are digested into smaller peptides and nutrients the body can use.

Importantly, bovine colostrum provides these components together in their original food matrix rather than as a collection of individually manufactured ingredients, making it a uniquely complex natural food used in nutritional supplements.

Not all colostrum supplements are the same. The natural quality of colostrum is influenced by when it is collected, where it comes from, how it is handled and how carefully it is processed. These choices matter because the goal is to preserve the valuable components that make colostrum so unique in the first place.

At MIP, we have specialised in New Zealand bovine colostrum for over 25 years. Our approach starts at the source:

  • First two milkings only: collected during the early window when colostrum is at its most concentrated.
  • Fresh, never frozen: our colostrum is collected and transported fresh and chilled before processing.
  • 20–25% IgG: providing a high concentration of the key immunoglobulin found in bovine colostrum, verified by batch.
  • New Zealand sourced: from pasture-raised dairy cows, supported by New Zealand’s rigorous food production and quality standards.

From sourcing through to the finished product, our focus is simple: protect the quality and integrity of the colostrum at every stage.

Discover more about why we source in New Zealand, how MIP Colostrum is processed, and the quality standards behind every batch.

Choose MIP Colostrum in the format that suits you

Complement your daily routine with Omega-3 Krill Oil.

  • MIP Colostrum Vege-Caps bottle containing 90 capsules

    Colostrum Vege-Caps

    Pure New Zealand colostrum in convenient 500mg vege-caps. Ideal for everyday use, travel and anyone who prefers a measured capsule format.

    From US$21.34
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  • MIP Colostrum Powder 80g pot

    Colostrum Powder 80g

    Pure, versatile New Zealand colostrum powder for mixing into water or your preferred drink. An ideal size for starting your MIP routine.

    From US$29.61
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  • MIP Colostrum Powder 500g bag

    Colostrum Powder 500g

    Our economical family-size supply of pure New Zealand colostrum powder—ideal for regular users, active households and adding to pets’ food.

    From US$123.54
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  • MIP Colostrum Vitality Blend 150g jar containing 30 servings

    Colostrum Vitality Blend 150g

    A light vanilla blend combining 2g of MIP Colostrum with gold kiwifruit, Mānuka honey, probiotics, vitamins and minerals. Mix into a drink or soft food.

    From US$31.43
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  • MIP Colostrum jar containing 100 natural strawberry-flavoured chews.

    Colostrum Chews

    A convenient, strawberry and light vanilla flavoured way for adults and children aged 5+ to enjoy MIP Colostrum. No swallowing capsules or mixing required.

    From US$21.34
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  • Krill oil containing omega-3 EPA and DHA, phospholipids and naturally occurring astaxanthin

    Omega-3 Krill

    Premium Antarctic krill oil supplying phospholipid omega-3s, naturally occurring astaxanthin and phosphatidylcholine to support heart, brain and joint health.

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References

  1. Silva, F.G. et al. (2024). A Comprehensive Review of Bovine Colostrum Components and Selected Aspects Regarding Their Impact on Neonatal Calf Physiology. Animals, 14(7), 1130.
  2. Ning, J. et al. (2024). Peptidomics comparison of endogenous peptides derived from parent proteins in bovine colostrum and mature milk. LWT, 191, 115648.
  3. Playford, R.J. & Weiser, M.J. (2021). Bovine Colostrum: Its Constituents and Uses. Nutrients, 13(1), 265.
  4. Puppel, K. et al. (2019). Composition and Factors Affecting Quality of Bovine Colostrum: A Review. Animals, 9(12), 1070.

This article provides general nutritional information and is not intended to diagnose, treat, cure or prevent any disease. Individual needs vary. Follow the product label and seek advice from a qualified health professional where appropriate.