A protein fragment produced during the breakdown of gelatin (cooked collagen), representing an intermediate stage in protein digestion.
From deutero- (second) + gelatose, combining gelatin with '-ose'. This specialized term comes from early biochemical analysis of protein decomposition products.
Gelatin comes from boiling animal bones and skin—it's a protein that's been partially broken down by heat, and your digestive system continues breaking it down further into these fragments.
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