Liquid prebiotic-vitamin supplement for poultry and swine, formulated mainly with fructooligosaccharides (FOS), vitamins (B complex, C, and E), and complemented with key amino acids such as glutamate, glutamine, and arginine. Its components act synergistically to support digestive function, intestinal health, and physiological balance during critical development stages, favoring the microbiota, preserving intestinal mucosa integrity, and providing antioxidant and metabolic support. It is administered orally, either in drinking water or incorporated into feed.