A study published in the Science and Agriculture Magazine by the Pedagogical and Technological University of Colombia explores the potential of using potato and carrot by-products as animal feed through Solid State Fermentation (FES). Located in Boyacá, one of Colombia's leading agricultural regions, the research aims to address the issue of food loss and waste by evaluating the nutritional value of these by-products. The study found that the FES product not only increased in protein value with the addition of a bacterial inoculum but also had a mineral content similar to commercial balanced feeds. However, the fiber content was higher than the requirements for farm animals, which could interfere with food consumption. This research presents a promising approach to using agro-industrial waste to create alternative diets for livestock, reducing the demand for traditional foods like corn and soybeans.