We have five factories and 23 years of experience in plant extracts
  • 0086-571-85302990
  • sales@greenskybio.com

Technical Articles

We hold regular seminars and welcome inquiries if you have any questions

Let's talk

Galactooligosaccharides: Complete Guide to Benefits, Applications and Quality

2026-04-22

What are Galactooligosaccharides (GOS)?

Galactooligosaccharides (GOS) are prebiotic fibers composed of galactose units, naturally found in human breast milk and some dairy products. GOS is one of the most extensively researched prebiotics, known for its ability to selectively stimulate the growth of beneficial gut bacteria, particularly Bifidobacteria and Lactobacilli, supporting digestive health, immune function, and overall wellness from infancy through adulthood.

Key Benefits

  • Gut Health: Selectively promotes the growth of beneficial Bifidobacteria and Lactobacilli, supporting a healthy gut microbiome and digestive function.

  • Immune Support: A balanced gut microbiome contributes to optimal immune function and the body's natural defense mechanisms.

  • Bone Health: May enhance calcium and magnesium absorption, supporting bone density and skeletal health.

  • Infant Nutrition: Naturally present in breast milk, GOS is widely used in infant formula to support healthy gut development in infants.

  • Mineral Absorption: May improve the bioavailability of essential minerals including calcium, magnesium, and iron.

Product Specifications

SpecificationDetails
Product NameGalactooligosaccharides (GOS)
SourceLactose (enzymatic synthesis)
PurityGOS ≥55%, ≥70%, ≥90%
AppearanceWhite to light yellow powder or syrup
SolubilityFreely soluble in water
Sweetness20-40% of sucrose
StorageStore in cool, dry place, away from light
Shelf Life24 months
Packaging25kg/drum or customized

Applications

  • Infant formula and pediatric nutrition

  • Prebiotic dietary supplements

  • Functional foods and beverages

  • Probiotic combination products

Quality Standards

  • Manufactured in GMP-certified facility

  • Third-party lab tested for identity, potency, and purity

  • Free from heavy metals, pesticides, and microbial contamination

  • Compliant with food-grade and infant formula standards

TAGS:
Get a Quote