Vitamin B2: A Metabolic Catalyst for Poultry Growth and Vitality PARTNERS' RESEARCH by Expana Issuu Riboflavin an overview ScienceDirect Topics Elemental Selenium and Vitamin B2 (riboflavin) are essential for glutathione use and recycling. Selenium is really low in Australian soils, and people are commonly deficient. Signs of low B2 are blood Role of riboflavin in energy production and redox reactions The Activation of Cytochrome P450 2C9 Is Facilitated by the Coenzyme Forms of Vitamin B2