A new study has shown that a deficiency in vitamin D was substantially linked to a 75% increase in risk of depression over a four year period. The findings are part of one of the largest studies of its kind.
Vitamin D or the ‘sunshine vitamin’ is essential for bone health and has recently been linked with other non-bone health outcomes such as inflammation and diabetes.
Small studies have found links between vitamin D and depression, but few have followed up with the same affected people over time. These findings are important as researchers have previously reported that between 10% to 50% of adults are deficient in vitamin D.
The current study investigated the links between vitamin D and depression in older adults and then re-examined the participants four years later to see if vitamin D status affected the risk of developing depression.
Researchers found that Vitamin D deficiency was associated with a 75% increase in the risk of developing depression by 4 years, and the finding remained even when controlling for a wide range of factors.