Vitamin B6, also known as pyridoxine, can be obtained from the diet and plays a vital role in many biological processes. Unfortunately, certain circumstances can increase the likelihood of developing a vitamin B6 deficiency. And if left untreated, chronic vitamin B6 deficiency can cause severe complications. Vitamin B6 supplements are widely available in most retail stores and can be used by individuals at risk of developing a deficiency.
Vitamin B6
Vitamin B6 serves many different functions within the human body. Pyridoxine is involved in the synthesis of important neurotransmitters such as serotonin and norepinephrine. In addition, vitamin B6 plays a role in the processing of proteins and sugars within the body. Vitamin B6 is required to maintain the health of nerve, immune and red blood cells.
Dietary Vitamin B6
According to the U.S. Office of Dietary Supplements, the recommended daily allowance for healthy adults is 1.3 mg per day. Vitamin B6 can be found in many food groups, including grains, meat, dairy and certain vegetables. Special populations, including the elderly, pregnant women, and nursing mothers, often have increased requirements of vitamin B6.
Causes of Vitamin B6 Deficiency
Certain health conditions can place you at risk for the development of a vitamin B6 deficiency. Conditions such as alcoholism, uremia, advanced age, hyperthyroidism, cirrhosis, heart failure and malabsorption syndromes can all increase the risk of deficiency. Medications such as isoniazid, which is an antibiotic for tuberculosis, can also place patients at risk for deficiency and is often prescribed with vitamin B6 supplements as a cautionary measure.
Vitamin B6 Deficiency Symptoms
Symptoms of vitamin B6 deficiency include muscle weakness, irritability, nervousness, depression, difficulty concentrating and short-term memory loss. Severe cases of vitamin B6 deficiency may result in anemia and seizures. In addition, low vitamin B6 levels may be associated with an increased risk of heart disease.
Vitamin B6 Safety
Since vitamin B6 is water soluble, excess amounts within the body are simply eliminated by the kidneys. Vitamin B6 supplementation is relatively safe and can be an effective treatment for deficiencies. In rare cases, higher doses may lead to the development of neuropathies. Vitamin B6 is widely available as an over-the-counter supplement. In addition, vitamin B6 is often included as an ingredient in multivitamins and B-compex vitamins. Contact your physician if you have concerns regarding vitamin B6 deficiency.
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