Question

Inadequate intake by the pregnant woman of which vitamin can cause neural tube detect?
1. Niacin
2. Folic acid
3. Thiamine
4. Riboflavin

Answer 1

Correct Answer - Option 2 : Folic acid

Concept:

• The deficiency of folic acid causes neural tube detection.
• 400 mcg of folic acid is necessary for pregnancy.
• A neural tube defect is a congenital malformation of the brain and spine. There are two types of neural tube defects anencephaly and spina bifida.

Explanation:

• Niacin, thiamine, and riboflavin are not necessary for pregnancy.

Niacin	Causes pellagra
Thiamine	Causes beriberi
Riboflavin	Causes ariboflavinosis