Riboflavin (vitamin B2) found in or extracted from liver tissue.
From hepato- (liver) + flavin (from Latin flavus 'yellow'). Flavins are yellow pigments with B-vitamin properties; this term specifically refers to the riboflavin found abundantly in liver, which is one of the richest dietary sources of this vitamin.
Liver is packed with hepatoflavin because the liver is your body's nutrient storage and processing center—it stockpiles all the good stuff including B vitamins! This is why liver was such a valued food throughout human history, though it went out of fashion in modern diets despite being a nutritional powerhouse.
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