Ariya Purity Galacto-oligosaccharides (GOS) is a high-purity prebiotic fibre designed to nourish beneficial gut bacteria and support a healthy gut microbiome. With a minimum GOS concentration of 70%—around 20% higher than many other brands, it is produced using a specialised nanofiltration process that reduces lactose, glucose and galactose impurities. Because GOS passes undigested into the large intestine, it acts as a prebiotic, stimulating the growth and activity of beneficial bacteria to support digestive and overall health.