Possible Clues:

• Pellagra preventer
• A B vitamin
• Vitamin, nicotinic acid
• B vitamin used to treat high cholesterol
• North account at home for complex vitamin
• Substance body needs? It's almost a crime, mentioning it
• One B vitamin
• B-complex acid
• Nickel account in the end is on the B complex list
• Type of vitamin a biblical character brought back in