What is thiamine made of? Exploring the chemical composition of Vitamin B1
                                
                                
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                                    4 min read                                
                            
                                The human body requires a steady supply of vitamins, as reserves of water-soluble ones like thiamine can be depleted in as little as 20 days. Thiamine, also known as vitamin B1, is a vital micronutrient whose chemical composition is defined by two interconnected ring structures: a pyrimidine ring and a thiazole ring.