# Bovine Salivary Gland Extract

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/bovine-salivary-gland-extract
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-04-04
**Evidence Score:** 2 / 10
**Category:** Protein
**Also Known As:** BSG extract, Bovine submandibular gland extract, Bovine parotid gland extract, SGP-T peptide source, Cattle salivary gland extract, Bovine sialaden extract

## Overview

Bovine salivary gland extract contains the bioactive peptide SGP-T (submandibular gland peptide-T), which modulates [inflammatory](/ingredients/condition/inflammation) responses by inhibiting neutrophil migration and suppressing endotoxin-induced fever. It is used in glandular therapy protocols based on the organotherapy principle that like tissue supports like tissue in the human body.

## Health Benefits

• [Anti-inflammatory](/ingredients/condition/inflammation) activity: Animal studies show submandibular gland peptide SGP-T suppressed endotoxin-induced fever and inhibited neutrophil migration (preliminary evidence)
• [Immunomodulat](/ingredients/condition/immune-support)ion: Veterinary studies demonstrated significant antibody production and immune responses in cattle (animal evidence only)
• Anti-allergic effects: SGP-T peptide prevented diarrhea development in ovalbumin-sensitized rats (preliminary evidence)
• Intestinal health support: SGP-T dose-dependently reduced intestinal motility disruption in animal models (preliminary evidence)
• Metabolic biomarker potential: Contains beta-hydroxybutyrate which increases in hyperketonemia (preliminary research)

## Mechanism of Action

The primary bioactive compound SGP-T (submandibular gland peptide-T) inhibits neutrophil chemotaxis and migration by interfering with [prostaglandin](/ingredients/condition/inflammation) and leukotriene signaling cascades involved in acute inflammation. SGP-T has also demonstrated suppression of endotoxin-induced fever responses, likely through modulation of cytokine release including TNF-alpha and IL-1 beta at the hypothalamic level. Additionally, salivary gland extracts contain epidermal growth factor (EGF) and [nerve growth factor](/ingredients/condition/cognitive) (NGF), which interact with their respective receptor tyrosine kinases (EGFR and TrkA) to influence tissue repair and neural maintenance.

## Clinical Summary

The majority of available evidence for bovine salivary gland extract comes from in vitro and animal studies rather than controlled human clinical trials, placing it firmly in the category of preliminary evidence. Animal studies in cattle demonstrated measurable antibody production and enhanced immune responses following administration, though direct extrapolation to human physiology remains unvalidated. Studies examining SGP-T specifically showed statistically significant suppression of neutrophil migration and fever in rodent endotoxin models, but no large-scale randomized controlled human trials have been published to date. The overall evidence base is insufficient to establish clinically recommended dosages or confirm therapeutic efficacy in humans.

## Nutritional Profile

Bovine salivary gland extract is primarily a protein-rich biological tissue extract. Protein content is the dominant macronutrient, estimated at 60–80% of dry weight, comprising a complex mixture of glycoproteins (notably mucins such as MUC5B and MUC7), proline-rich proteins, statherin, histatins, and cystatins. The bioactive peptide SGP-T (Submandibular Gland Peptide-T) is a key identified compound, a 17-amino acid peptide with reported concentrations in the microgram-per-gram range of glandular tissue. Fat content is low, estimated at 2–5% dry weight, primarily as phospholipids from cellular membranes. Carbohydrate content is present largely as glycan chains attached to mucin glycoproteins (oligosaccharides including sialic acid/N-acetylneuraminic acid, fucose, galactose, N-acetylglucosamine), contributing approximately 10–20% of dry weight. Minerals present include zinc (relevant to [immune function](/ingredients/condition/immune-support), estimated 15–30 µg/g dry weight), calcium, magnesium, sodium, potassium, and trace amounts of iron and copper, consistent with bovine glandular tissue composition. B vitamins (B2, B3, B12) are present at low levels typical of mammalian glandular tissue. Epidermal Growth Factor (EGF) and [Nerve Growth Factor](/ingredients/condition/cognitive) (NGF) are documented bioactive compounds in submandibular gland tissue, present at nanogram-per-gram concentrations. Bioavailability of intact peptides such as SGP-T via oral route is considered limited due to gastrointestinal proteolysis, though some resistance to [digestion](/ingredients/condition/gut-health) has been noted for certain glycoproteins; enteric formulations may improve delivery. Data on precise micronutrient concentrations in commercial extracts is limited due to variable extraction and processing methods.

## Dosage & Preparation

No clinically studied dosage ranges for bovine salivary gland extract in human supplementation were identified in the available literature. Animal studies used intravenous injection of peptides at 100 μg/kg, but oral dosing protocols for humans are not documented. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Bovine salivary gland extract carries a theoretical risk of allergic or hypersensitivity reactions, particularly in individuals with known beef or bovine protein allergies. Prion disease transmission is a theoretical concern with any bovine-derived glandular product, though reputable manufacturers source from BSE-free certified herds to mitigate this risk. There are no well-documented drug interactions established in the literature, but caution is warranted when combining with immunosuppressant medications such as corticosteroids or calcineurin inhibitors given its proposed [immunomodulatory](/ingredients/condition/immune-support) activity. Safety data in pregnant or breastfeeding women is absent, and use during pregnancy should be avoided until adequate human safety data exists.

## Scientific Research

The available research focuses primarily on veterinary applications rather than human clinical trials. Key studies include immunization research showing antibody production in cattle and investigations of bioactive peptides like SGP-T demonstrating [anti-inflammatory](/ingredients/condition/inflammation) and anti-allergic activities in animal models. No published human clinical trials, randomized controlled trials, or meta-analyses were identified.

## Historical & Cultural Context

No information regarding historical use of bovine salivary gland extract in traditional medicine systems was identified in the research. The extract appears to be primarily a modern research ingredient developed for veterinary and investigational purposes.

## Synergistic Combinations

Other glandular extracts, [digestive enzyme](/ingredients/condition/gut-health)s, probiotic strains, [anti-inflammatory](/ingredients/condition/inflammation) herbs, immune-supporting nutrients

## Frequently Asked Questions

### What is SGP-T in bovine salivary gland extract?

SGP-T stands for submandibular gland peptide-T, a small bioactive peptide isolated from the bovine submandibular salivary gland. It has demonstrated anti-inflammatory properties in animal models by inhibiting neutrophil migration and suppressing endotoxin-induced fever responses through modulation of cytokine pathways including TNF-alpha and IL-1 beta.

### Is bovine salivary gland extract safe to take as a supplement?

Bovine salivary gland extract is generally considered low-risk when sourced from BSE-free certified cattle, but human safety data is very limited. Individuals with bovine protein allergies should avoid it, and those taking immunosuppressant drugs like corticosteroids should consult a physician before use due to potential immunomodulatory interactions.

### What is the recommended dosage of bovine salivary gland extract?

No clinically validated human dosage has been established for bovine salivary gland extract, as controlled human trials are lacking. Most commercial glandular supplement products provide between 50 mg and 200 mg per serving, based on practitioner convention rather than evidence-based dosing protocols from clinical research.

### Can bovine salivary gland extract boost the immune system?

Animal studies, particularly in cattle, have shown that bovine salivary gland extract can stimulate antibody production and enhance certain immune responses. However, these findings have not been replicated in controlled human trials, so claims of immune boosting in humans remain speculative and unsupported by clinical-grade evidence.

### How does bovine salivary gland extract differ from other glandular supplements?

Unlike thyroid or adrenal glandular extracts that contain identifiable hormones such as T3, T4, or cortisol, bovine salivary gland extract is distinguished by its unique peptide SGP-T and high concentrations of epidermal growth factor (EGF) and nerve growth factor (NGF). Its proposed benefits are focused on inflammation modulation and tissue repair signaling rather than direct hormonal replacement activity.

### Does bovine salivary gland extract have any documented side effects or adverse reactions?

Bovine salivary gland extract is generally well-tolerated in supplement form, with most adverse effects being mild and gastrointestinal in nature, such as nausea or digestive upset. However, long-term safety data in humans remains limited, and the ingredient has not undergone extensive clinical trials. Individuals with beef or dairy allergies should avoid this supplement due to potential cross-reactivity. Anyone experiencing persistent adverse effects should discontinue use and consult a healthcare provider.

### Is bovine salivary gland extract effective for digestive or gut health support?

Preliminary animal research suggests SGP-T peptide from bovine salivary glands may have anti-allergic properties related to digestive function, including prevention of diarrhea in some experimental models. However, these studies were conducted in animals and have not been adequately replicated in human clinical trials. Claims about gut health benefits remain largely theoretical and lack robust human evidence to support supplementation. More research is needed before making definitive claims about digestive applications.

### What is the difference between bovine salivary gland extract and other bovine glandular supplements like thymus or adrenal extracts?

Bovine salivary gland extract is specifically sourced from salivary glands and contains unique peptides like SGP-T, which has shown anti-inflammatory and immunomodulatory properties distinct from thymus (immune function focus) or adrenal extracts (stress-related functions). Each glandular extract contains different bioactive compounds tailored to their source tissue, making them functionally different despite all being animal-derived. The choice between them depends on the specific health outcome being targeted, though all lack substantial human clinical evidence.

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