Most people in developed countries consume plenty of vitamin B12, but some have problems absorbing the vitamin from their diets and end up with a deficiency. People who are at an increased risk for a vitamin B12 deficiency include older adults, vegetarians, and people who have had surgery to remove parts of the digestive tract. Signs of a deficiency may include poor memory, mouth soreness, and weight loss.
(Click Vitamin B12 Deficiency for more information on what symptoms may indicate a deficiency, what problems may occur with this condition, and what treatments are available. You can also click any of the links in the box to the right for specific information.)
