A type of protein fragment produced during the partial breakdown of proteins, intermediate between the original protein and simpler amino acids.
From Greek deuteros (second) + proteose (a partially broken-down protein). This biochemistry term describes the secondary products when proteins are digested or chemically broken apart.
Your digestive system creates these intermediate molecules as it breaks down meat or cheese—they're stepping stones between whole proteins and the amino acids your body can actually absorb and use.
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