GOS – Galacto-oligosaccharides 60 capsules (500mg/capsule)


The use of Galacto-oligosaccharides known as GOS, as a prebiotic, has demonstrated a significant impact on the body’s intestinal flora. GOS are oligosaccharides formed via β-galactosidase transgalactosylation1, that are indigestible food components which travel through the upper gastrointestinal tract without breaking down and reach the colon intact, where they ferment, producing short-chain fatty acids (SCFAs) that contribute to the modulation of the intestinal microbiota. GOS has shown positive effects on self-reported high trait anxiety, attentional bias, and bacterial abundance. This suggests that including a GOS prebiotic in the diet could potentially enhance indicators associated with pre-clinical anxiety2.


Dosage: 500mg per capsule

Capsules per order: 60 capsules

Instructions: 2 capsules daily (morning & evening)


  1. Mei Z, Yuan J, Li D. Biological activity of galacto-oligosaccharides: A review. Front Microbiol. 2022 Sep 6;13:993052. doi: 10.3389/fmicb.2022.993052. PMID: 36147858; PMCID: PMC9485631. https://pubmed.ncbi.nlm.nih.gov/36147858/
  2. Johnstone, N., Milesi, C., Burn, O. et al. Anxiolytic effects of a galacto-oligosaccharides prebiotic in healthy females (18–25 years) with corresponding changes in gut bacterial composition. Sci Rep 11, 8302 (2021). https://doi.org/10.1038/s41598-021-87865-w