What is the relationship between vitamin B-12 and depression?
Doctors have long known of the relationship between low levels of vitamin B-12 and depression. Vitamin B-12 and other B vitamins, such as folate, play a role in the production of certain brain chemicals that are important in regulating mood and other brain functions. However, it’s less clear whether vitamin B-12 deficiency may be the cause or the result of depression. Poor nutrition is one cause of vitamin B-12 deficiency. But poor nutrition may also be a consequence of depression. People who are depressed may lose interest in eating or make less healthy food choices, which may lead to vitamin B-12 deficiency. When you’re depressed, it’s important to try to eat a healthy, balanced diet that includes sources of essential nutrients, including B vitamins. Vitamin B-12 is plentiful in animal products such as fish, meat, poultry, eggs and milk. Fortified breakfast cereals also are a good source of B-12 and other B vitamins. Especially if you’re older than 50 or you’re a vegetarian, taking a
