Source dependent

galacto-oligosaccharides is recognized, but its vegan status has not been verified in the local ingredient taxonomy.

Names you may see on a label

galacto oligosaccharidesGalatto-oligosaccaridiGalactoligosacáridosGalacto-oligosacharidegalakto-oligosakkariditGalactooligossacarídeo

How to verify it

Look for a vegan certification or a manufacturer statement identifying the original source. The ingredient name alone does not settle it.