Vitamin B-12, or cobalamin, is involved in many body processes and works very closely with another B vitamin, folic acid. They both work to synthesize DNA in our body and manufacture red blood cells. Vitamin B-12 is also necessary for the proper functioning of our nervous system. Therefore, if a B-12 deficiency occurs, nerve function can become impaired which may be characterized by tingling sensations and numbness. A vitamin B-12 deficiency can also cause impaired mental function, such as poor memory. A deficiency in Vitamin B-12 is thought to be quite common among the elderly, and may contribute to low mood among this age group. In addition, as we age, we secrete a lower amount of the stomach acid necessary for vitamin B-12 absorption, and thus older adults and the elderly are at an increased risk for vitamin B12 deficiency. it is strongly recommended that people over the age of 50 consume a vitamin B-12 supplement. High amounts of folic acid may also mask the symptoms of a B-12 deficiency, and folic acid may correct the megaloblastic anemia that may be present, without correcting nerve damage that may have occurred. Therefore, it is often recommended that Vitamin B-12 and folic acid be taken together. Supplementation with vitamin B12 is also recommended for vegetarians and vegans, since they limit/eliminate animal products that provide vitamin B12. Vitamin B-12 is recommended as part of a daily regimen for Women’s Health, Stress, Heart Health, Mood/Emotional Well-Being, Energy, Fitness.