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creatine vs. creatinine

creatine vs. creatinine: What's the difference?

Creatinine is a byproduct of creatine. The amino acid creatine is a natural part of the muscles, and is processed to store energy for muscular contraction. The process by which it鈥檚 metabolized creates creatinine, which is then found in the urine, muscles, and blood.

creatine

noun

Biochemistry.
  1. an amino acid, C 4 H 9 N 3 O 2 , that is a constituent of the muscles of vertebrates and is phosphorylated to store energy used for muscular contraction.

creatinine

noun

Biochemistry.
  1. a crystalline end product of creatine metabolism, C 4 H 7 N 3 O, occurring in urine, muscle, and blood.