Why is vitamin B2 called Vitamin G? Unraveling the Naming History
                                
                                
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                                    3 min read                                
                            
                                In the early 20th century, scientists identified a water-soluble compound vital for growth, which they initially labeled 'Vitamin G'. This nutrient was later reclassified, explaining why vitamin B2 was called Vitamin G during a period of evolving vitamin nomenclature. The change reflects a pivotal moment in nutritional science as researchers began to distinguish individual components of the B-complex.