Which vitamin is essential for the synthesis of catecholamines, such as dopamine and norepinephrine, in the brain?

A Vitamin B6 ✓
B Vitamin B9
C Vitamin C
D Vitamin B12

Explanation

Vitamin B6 is a co-factor for the enzyme dopa decarboxylase, which converts L-DOPA to dopamine.

Mnemonic

B6 = Brain 6 = six neurotransmitters

Source

Guyton and Hall Textbook of Medical Physiology
Vitamins Biochemistry Neurotransmitter synthesis Medium MEDICAL Confidence: high