Nitrogen in urine comes from the breakdown of proteins in the body. When proteins are metabolized, they are broken down into amino acids, and then converted into ammonia through a process called deamination. Ammonia is then further converted into urea, which is excreted in urine. So, essentially, the nitrogen in urine comes from the nitrogen-containing amino acids in the proteins we eat.
MatthewCollins83 t1_jaxzqs8 wrote
Reply to Where does nitrogen in urine come from? by Easy-Care-7463
Nitrogen in urine comes from the breakdown of proteins in the body. When proteins are metabolized, they are broken down into amino acids, and then converted into ammonia through a process called deamination. Ammonia is then further converted into urea, which is excreted in urine. So, essentially, the nitrogen in urine comes from the nitrogen-containing amino acids in the proteins we eat.