What Happened to Vitamin G? Uncovering the Truth About the 'Missing' Nutrient
                                
                                
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                                    2 min read                                
                            
                                In the 1920s, scientists isolated a factor from the 'water-soluble B' complex that was shown to promote growth in rats, labeling it vitamin G. However, this name has since disappeared from nutritional science, leading many to wonder what became of the 'missing' nutrient. The truth is that as vitamin research progressed, what was once called vitamin G was reclassified as a more familiar compound: riboflavin, or vitamin B2.