Vitamin D doesn't prevent depression in older adults, large study finds

Vitamin D is required in small quantities for normal cell function, growth and development.

(CNN)Vitamin D is known as the "sunshine vitamin" because your body absorbs the nutrient primarily through exposure to the sun.

Some researchers had thought insufficient levels of vitamin D may play a role in depression but the findings of a large study of more than 18,000 US adults ages 50 years or older published Tuesday has found no evidence of that impact.
"There was no significant benefit from the supplement for this purpose. It did not prevent depression or improve mood," said Dr Olivia I. Okereke of Massachusetts General Hospital's Psychiatry Department and lead author of the study, in a news statement.