A member asked:

Do vitamins b, c and magnesium cause yellowish brown stool and bright yellow urine?

4 doctors weighed in across 2 answers

Riboflavin: I don't know about the stool color, but b-vitamins are often spiked with a large amount of riboflavin / vitamin b2. This has a natural yellow fluorescence and its changing the color of the urine perhaps also makes people think the vitamins are better. It's harmless.

Answered 8/11/2013

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B-Vitamins: B vitamins can cause bright yellow urine, check with your doctor if you are concerned. Not familiar with these vitamins and magnesium causiing yellowish stool. Best wishes.

Answered 5/29/2016

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