Folic Acid is really a family of several complex chemicals, but is generally referred to as one substance. It is present in all green leaved vegetables.

Vitamin B12, also known as cobalamin, which is naturally found in foods such as fish, milk and milk products, eggs, meat and poultry. Vitamin B12 is important for good health, necessary for the proper digestion and absorption of foods and for normal metabolism of carbohydrates, and fat. It helps maintain healthy nerve cells and red blood cells and is needed to make DNA. Vitamin B12 is bound to the protein in food. Hydrochloric acid in the stomach releases B12 from protein during digestion. Unlike other water-soluble nutrients, vitamin B12 is stored in the liver, kidney, and other body tissues. It can take several years before signs of the deficiency appear due to poor dietary intake. Vitamin B12 functions as a "methyl donor." A methyl donor is a compound that carries and donates methyl groups to other molecules, including cell membrane components and neurotransmitters. As a methyl donor vitamin B12 is involved in homocysteine metabolism and plays a critical role in proper energy metabolism, immune function, and nerve function. Therefore, vitamin B12 is clearly an added benefit for anyone wanting to lose weight, as without it, metabolism is not at its peak potential.

Vitamin B6- There are three traditionally considered forms of vitamin B6: pyridoxal (PL), pyridoxine (PN), pyridoxamine (PM). The phosphate ester (PLP) has a leading role in metabolism of human body. It is obtained from the diet since humans cannot manufacture it. PLP is crucial in over 100 enzymes that enable important chemical reactions in the human body. In the brain, the manufacture of neurotransmitters like serotonin from tryptophan is made possible by PLP. PLP is also a coenzyme in the production of the iron coating component of hemoglobin called heme. Signs of vitamin B6 deficiency include irritability, depression and confusion, inflammation of the tongue, sores or ulcers of the mouth and the skin at the corner of the mouth.