A paper published in the journal Schizophrenia Research found a significant relationship between low vitamin D levels and heightened levels of depression among individuals with a history of psychotic disorders.
The researchers measured the vitamin D levels of 358 patients with a history of at least one psychotic episode. The study found that low vitamin D levels were linked to higher levels of depression symptoms among people with psychosis.
The researchers concluded,
“Randomized controlled trials should be performed to investigate the effect of vitamin D supplementation as adjuvant treatment strategy in patients with prominent negative or depressive symptoms. .”