Vitamin B12 helps body cellular functions and prevents pernicious anemia. It is also involved in the synthesis of amino acids and fatty acids. Pantothenic acid , sometimes called the anti-stress vitamin, is involved in converting glucose to energy and is needed for protein synthesis and PABA and choline utilization. Biotin plays an important role in the metabolism of both fat and carbohydrates. It is also a component of several enzymes.
Folic acid is a precursor for essential co- enzymes.
It also plays a role in the prevention of neural tube defects of the developing fetus, and is a recommended supplement during pregnancy. This has worked for every single client I've had with this, bar none. I heard an herbalist in Ohio say that the craving for tobacco was a nutrient deficiency of Vitamin B3 or Niacin. I used 1 of each three times a day. I noticed I was feeling much calmer.