# Porcine Immune Milk (Sus scrofa domesticus)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/porcine-immune-milk
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-29
**Evidence Score:** 2 / 10
**Category:** Protein
**Also Known As:** Sus scrofa domesticus milk, Pig colostrum, Swine immune milk, Porcine colostrum, Domestic pig milk, Sow milk, PIM

## Overview

Porcine immune milk contains milk exosomes (MEx) that may modulate immune responses by being internalized by CD14+ monocytes. This colostrum-derived supplement also provides bioactive oligosaccharides and sialic acids that could potentially support [immune function](/ingredients/condition/immune-support).

## Health Benefits

• Potential [immune modulation](/ingredients/condition/immune-support) through milk exosomes (MEx) that are internalized by CD14+ monocytes - based only on in vitro porcine cell studies, no human evidence
• May contain bioactive oligosaccharides (OS) and sialic acids (SA) that could support immunity - compositional analysis only, no clinical evidence
• Rich in whey proteins (80-90% of colostrum proteins) - compositional data only, no human health outcomes studied
• Contains extracellular vesicles (MEVs) with stage-specific lipid profiles - preclinical characterization only
• Source of milk-derived exosomes (~100-150 nm particles) - analytical studies only, no human clinical benefits demonstrated

## Mechanism of Action

Milk exosomes (MEx) from porcine immune milk are internalized by CD14+ monocytes, potentially modulating immune cell signaling pathways. The bioactive oligosaccharides and sialic acids may interact with immune receptors to influence [inflammatory](/ingredients/condition/inflammation) responses. These compounds could affect cytokine production and immune cell activation, though the specific molecular pathways remain under investigation.

## Clinical Summary

Current evidence for porcine immune milk is limited to in vitro studies using porcine cells, with no human clinical trials available. Laboratory studies have demonstrated that milk exosomes can be taken up by CD14+ monocytes in cell culture models. Compositional analyses have identified bioactive oligosaccharides and sialic acids in porcine colostrum. The lack of human studies means efficacy and safety in humans remains unestablished.

## Nutritional Profile

Porcine immune milk (colostrum and transitional milk from Sus scrofa domesticus) is compositionally distinct from mature porcine milk. Protein content is exceptionally high in colostrum at approximately 150-200 g/L in early colostrum (0-12 hours post-partum), rapidly declining to 50-80 g/L by 24 hours and ~55 g/L in mature milk. Whey proteins dominate at 80-90% of total colostrum protein, compared to ~20% in mature milk; key fractions include immunoglobulins (IgG ~60-90 mg/mL in early colostrum, IgA ~10-15 mg/mL, IgM ~5-10 mg/mL), lactoferrin (~1-2 mg/mL colostrum), lactoperoxidase, alpha-lactalbumin (~1.5-2.5 mg/mL), and beta-lactoglobulin (~3-4 mg/mL). Casein fraction accounts for ~10-20% of colostrum protein, increasing to ~80% in mature milk. Fat content ranges from 50-90 g/L in colostrum with a fatty acid profile rich in palmitic acid (C16:0, ~26-30% of total fatty acids), oleic acid (C18:1, ~28-32%), linoleic acid (C18:2n-6, ~12-18%), and stearic acid (C18:0, ~10-14%); omega-3 fatty acids (ALA, EPA, DHA) are present at low concentrations (~1-3% of total fatty acids) unless sow diet is supplemented. Lactose is lower in colostrum (~30-35 g/L) compared to mature milk (~50-55 g/L). Bioactive oligosaccharides (OS) are present at approximately 0.3-0.5 g/L in colostrum, structurally similar to but less diverse than human milk oligosaccharides; sialylated OS predominate including 3'-sialyllactose and 6'-sialyllactose. Free sialic acid (N-acetylneuraminic acid, Neu5Ac) is present at ~200-400 mg/L in colostrum. Growth factors include IGF-1 (~150-300 ng/mL colostrum), EGF (~5-20 ng/mL), and TGF-beta (~100-500 ng/mL). Milk exosomes (MEx) are present at ~10^11-10^12 particles/mL, carrying miRNAs, proteins, and lipids. Micronutrients in colostrum include vitamin A (~500-800 µg/L as retinol equivalents, approximately 3-5x mature milk), vitamin E (~5-8 mg/L as alpha-tocopherol, ~3-4x mature milk), vitamin D (~0.3-0.5 µg/L, low), vitamin B12 (~2-4 µg/L), riboflavin (~1-2 mg/L), calcium (~1.5-2.0 g/L), phosphorus (~1.2-1.8 g/L), magnesium (~120-150 mg/L), zinc (~15-25 mg/L in early colostrum, declining sharply), iron (~1-3 mg/L), selenium (~50-100 µg/L). Bioavailability note: porcine colostral immunoglobulins are not absorbed intact across the mature human gut epithelium (gut closure occurs in piglets at ~24-36 hours; analogous passive absorption does not occur in adult humans), meaning immunoglobulin bioactivity in human adults is likely limited to luminal/mucosal effects rather than systemic absorption. Whey protein digestibility is high (~90-95%) and amino acid profile is complete with high branched-chain amino acid content (leucine ~10-11% of protein, isoleucine ~5-6%, valine ~5-6%). Lactoferrin bioavailability is partially preserved due to resistance to gastric proteolysis at physiological concentrations.

## Dosage & Preparation

No clinically studied dosage ranges for human use are available as human trials are absent. Studies used analytical quantities such as 7.5 mL skimmed milk for exosome purification or 250 mL milk samples for compositional analysis, without standardization or dosing details for supplementation. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Safety data for porcine immune milk supplements is extremely limited due to lack of human studies. Individuals with pork allergies should avoid this supplement due to potential cross-reactivity. No known drug interactions have been documented, but caution is advised when combining with immunosuppressive medications. Pregnant and breastfeeding women should avoid use due to insufficient safety data.

## Scientific Research

No human clinical trials, RCTs, or meta-analyses on porcine immune milk were identified in the available research. All studies focus on in vitro porcine cell studies and compositional analyses, such as exosome purification methods (related PMID: 38045600) and oligosaccharide profiling using analytical techniques.

## Historical & Cultural Context

No historical or traditional medicine uses for porcine immune milk are documented in the available sources. Research emphasizes modern compositional and preclinical analyses rather than ethnomedical context.

## Synergistic Combinations

Bovine colostrum, lactoferrin, immunoglobulins, [probiotic](/ingredients/condition/gut-health)s, zinc

## Frequently Asked Questions

### What are milk exosomes in porcine immune milk?

Milk exosomes (MEx) are small vesicles containing proteins and genetic material that can be internalized by CD14+ monocytes. In vitro studies suggest these exosomes may influence immune cell function, though human effects are unknown.

### How much porcine immune milk should I take daily?

No established dosage recommendations exist for porcine immune milk supplements due to lack of human clinical trials. Most commercial products suggest following manufacturer instructions, typically ranging from 500-2000mg daily.

### Is porcine immune milk safe for people with milk allergies?

Porcine immune milk may pose risks for individuals with mammalian milk allergies due to similar protein structures. Those with cow's milk or other mammalian milk allergies should consult healthcare providers before use.

### What oligosaccharides are found in porcine immune milk?

Porcine immune milk contains various bioactive oligosaccharides and sialic acids that may support immune function. Compositional analyses have identified these compounds, though specific concentrations and bioavailability in supplements vary.

### Can porcine immune milk replace human colostrum supplements?

Porcine immune milk differs significantly from human colostrum in composition and bioactive compounds. While both contain immune factors, human studies are needed to determine if porcine sources provide similar benefits to human-derived alternatives.

### Is porcine immune milk safe during pregnancy and breastfeeding?

There is insufficient clinical evidence to establish safety of porcine immune milk during pregnancy or lactation. Pregnant and breastfeeding individuals should consult with a healthcare provider before use, as most safety data for this ingredient comes from in vitro studies rather than human trials. The potential immunomodulatory effects have not been evaluated in these populations.

### Does porcine immune milk interact with immunosuppressant medications?

Porcine immune milk contains bioactive compounds that may modulate immune function based on cell culture research, raising theoretical concerns for individuals taking immunosuppressant drugs. Anyone on medications that suppress immunity (such as corticosteroids or biologics) should consult their healthcare provider before supplementing. No human drug interaction studies have been conducted for this ingredient.

### How does the evidence quality for porcine immune milk compare to human colostrum or bovine colostrum supplements?

Porcine immune milk has minimal human clinical evidence—most research is limited to in vitro studies using porcine cells, while bovine and human colostrum have more established human safety and efficacy data. The exosome uptake and immune modulation proposed for porcine products has not been demonstrated in human subjects. This makes porcine immune milk less evidence-backed than established colostrum alternatives for health claims.

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*Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com*
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