Do you need to fast to check urine protein?

Urine protein testing is usually not required on an empty stomach.

Urine protein testing is a way to assess kidney function. Although diet may affect the amount of certain chemicals in urine, it does not affect urine protein much. Urine is formed in the kidneys, which are not part of the digestive system and are not affected by fasting or satiety. Therefore, urine protein testing is generally not required on an empty stomach. However, it should be noted that before collecting urine samples, it is necessary to ensure that the urethral orifice is clean to prevent the samples from being contaminated by pathogenic bacteria and affecting the test results.