A yellow pigment found in living organisms that acts as a coenzyme, helping enzymes in the body perform important chemical reactions.
From Latin 'flavus' (yellow) combined with the chemical suffix '-in,' named because of its distinctive yellow color. The name was coined by scientists studying B vitamins in the early 20th century.
Flavins are like the body's tiny yellow workers—they're absolutely essential for turning the food you eat into energy, yet most people have never heard of them because they work silently inside your cells.
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