Multiple choice

How are excess water soluble vitamins excreted?

  1. By respiration

  2. Via stool

  3. Via urine

  4. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Water-soluble vitamins are not stored in large amounts in the body; any excess circulating in the blood is filtered by the kidneys and excreted in the urine. Fat-soluble vitamins, on the other hand, can accumulate in adipose tissue and the liver.

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