Vitamin B Deficiency

**Definition:** A condition due to deficiency in any member of the VITAMIN B COMPLEX. These B vitamins are water-soluble and must be obtained from the diet because they are easily lost in the urine. Unlike the lipid-soluble vitamins, they cannot be stored in the body fat.

**Tree numbers:** - C18.654.521.500.133.699

**Synonyms:** - Deficiency, Vitamin B