People need a number of vitamins and minerals to achieve optimal health and to avoid health problems associated with nutrient deficiencies. B12 is a vitamin found naturally in many foods that has been linked to depression and mood. Though there is no evidence that shows causal relationship between depression and B12, its important that you get enough of the vitamin so you can avoid health problems caused by vitamin deficiencies.
B12
Vitamin B12 is naturally present in some foods, added to others and is widely available as both a dietary supplement and as a prescribed medication, according to the Office of Dietary Supplements, a part of the National Institutes of Health. Most people get enough B12 from their diets, as many foods naturally contain it and other nutrients. Your body needs B12 for a variety of purposes, ranging from blood cell formation to DNA synthesis.
B12 and Depression
According to Daniel K. Hall-Flavin, M.D. of the Mayo Clinic, vitamin B12, along with other B vitamins, does play a role in the body's ability to make chemicals that affect your brain and your moods. People with low levels of B12 and other B vitamins, known as deficiencies, sometimes also experience depression. Though the lack of B12 may not necessarily cause depression, low levels of B12 may contribute or exacerbate the effects of it.
Supplements, Medications and Sources
The best way to get your daily recommended allowance of B12 is to maintain a healthy, well-balanced diet. B12 is commonly found in various animal products such as fish, fortified breakfast cereals, meats, yogurt and dairy products. If you're suffering from a B12 deficiency, your doctor can prescribe a B12 injection that delivers a large dose of the vitamin directly into your bloodstream. If you suspect you have a B12 deficiency, your doctor can perform a blood test to determine if you need additional supplements or medication.
Other Health Effects
Apart from depression, vitamin B12 is commonly used as an energy supplement or booster for those with low energy or endurance; however, the Office of Dietary Supplements reports that vitamin B12 supplements seem to have no energy boosting effects in people who otherwise have enough B12. Also, vitamin B12 does have the potential to interact with drugs and other medications, so you should always talk to a physician if you're considering using B12 as a dietary supplement.
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