Still tired even after sleeping? Cracks at the corner of your mouth? Your body might be screaming for Vitamin B2 Most people ignore this until the signs get obvious. Vitamin Full article: Riboflavin and health: A review of recent human research Riboflavin aka B2 is the second of the 8 B vitamins Riboflavin is found naturally in many foods Best sources milk and milk products Great sources enriched flour products, Riboflavin (Vitamin B2), MTHFR, and Deficiency Symptoms Genetic Lifehacks Figure 1 from Glutathione redox cycle protects cultured endothelial cells against lysis by extracellularly generated hydrogen peroxide. Semantic Scholar