Abstract

The untapped potential of Brewer’s Spent Grains (BSG) has been explored. It is a by-product of the brewing process and a significant resource for human nutrition, health, food safety and the circular economy. Despite being rich in fiber, protein, vitamins and antioxidants, BSG has been traditionally underutilized. The review illuminates the nutritional profile of BSG and its prospective applications in the human diet, particularly its role in modulating Glycaemic Response (GR) and fostering gut health. The antioxidant properties of BSG are underscored, with a focus on their potential in mitigating oxidative stress. The review also emphasizes the role of BSG in bolstering food safety and advocating for a circular economy, highlighting the necessity for innovative approaches to optimize diminishing natural resources and enhance food security. The valorization of BSG is presented as a process for minimizing resource Wasting, reducing the carbon footprint of the brewing process, and creation of new markets.

Keywords:Brewer’s spent grains; Prebiotics; Glycaemic response; Human health; Human nutrition