Glanbia plc operates in the nutrition sector, focusing on the development and distribution of nutritional products and ingredients. The company has three main segments: Performance Nutrition, which includes sports nutrition products and brands like Optimum Nutrition; Health & Nutrition, which offers vitamin and mineral premix solutions and natural flavors; and Dairy Nutrition, which provides whey protein solutions and American-style cheddar cheese. Glanbia serves a diverse customer base across various markets globally, leveraging its integrated supply chain and innovation capabilities to meet growing consumer demands for health and wellness products.