Fast Five Quiz: Vitamins

Mary L. Windle, PharmD


January 30, 2019

Patients with celiac disease, Crohn disease, ulcerative colitis, inflammatory bowel disease, and other malabsorptive autoimmune conditions may have low pyridoxal 5’ phosphate levels.

The recommended dietary allowance (RDA) of vitamin B6 is increased in pregnant and lactating women. The normal RDA is 1.2 mg for women aged 14-18 years and 1.3 mg for women aged 19-50 years. However, 2 mg is the RDA for women aged 14-50 years who are pregnant or lactating.

Vitamin B6 has been used to treat the following conditions, with varying results:

  • Premenstrual syndrome

  • Carpal tunnel syndrome

  • Schizophrenia

  • Childhood autism

  • ADHD

Isolated vitamin B6 deficiency is rare. Low or inadequate vitamin B6 levels are usually associated with low levels of vitamin B12, folic acid, or other B-complex vitamins.

Read more information on vitamin use and toxicity.


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