B vitamins are essential components in most major metabolic reactions as they play an important role in energy production, including the metabolism of lipids, carbohydrates, and proteins.* Vitamin B-12 facilitates energy production and is required for nucleic acid (DNA) synthesis, methionine synthesis from cysteine, and normal myelin synthesis in the nervous system.* Along with vitamin B-6 and folic acid, adequate levels of vitamin B-12 are required to maintain healthy plasma homocysteine levels.* The elderly and strict vegetarians are often at risk for vitamin B-12 deficiency, either due to low dietary intake or decreased absorption. Nutri-Dose™ B-12 10,000 mcg is a convenient and palatable liquid formulation that is absorbed quickly by the body, delivering rapid, energizing nutrition.*