Does taking vitamins make your urine yellow?
May 16, 2023
Source: Cainiu Health
Dr. Zhao Xinju
Introduction
If you take vitamin A or vitamin C supplements, urine discoloration generally does not occur, as these medications do not contain riboflavin. However, if you take B-complex vitamins, your urine may turn yellow after taking the medication. This is a normal phenomenon because B-complex vitamins contain riboflavin, which is not easily absorbed by the body.
Under normal circumstances, taking vitamin A or vitamin C supplements generally does not cause yellow urine. However, if you are taking B-complex vitamins, your urine may turn yellow. The specific analysis is as follows:
1. Unlikely to cause yellow urine
Vitamins are essential nutrients required for the body's metabolic processes and help regulate metabolism. Vitamins are typically obtained from food. Picky eating or overeating may lead to vitamin deficiencies. However, since there are many types of vitamins, if the deficiency involves vitamins such as vitamin A, vitamin C, or vitamin E, taking prescribed supplements usually does not alter urine color, because these medications do not contain riboflavin.
2. May cause yellow urine
If you take supplements such as vitamin B1, vitamin B6, or vitamin B12 tablets, your urine may become yellow after taking them. This is because B-complex vitamins contain riboflavin (vitamin B2), which the body cannot fully absorb. Excess riboflavin is excreted in urine, causing it to appear yellow—a normal and expected side effect of these medications.
After taking vitamin supplements for the recommended period, follow your doctor's instructions to discontinue use; long-term use is not advised. If you experience any discomfort or adverse reactions while taking these medications, seek medical attention at a hospital promptly.
