"Vitamin D deficiency leads to both medical and psychosocial problems. It has re-emerged as an epidemic that mainly affects the minority populations.".
"Your body acquires vitamin D through sun exposure. Certain foods and supplements can also be sources of vitamin D."
"Low levels of the vitamin may contribute to schizophrenia in adults, depression, and seasonal affective disorder."
Read more: https://www.webmd.com/vitamins-and-supplements/what-to-know-about-vitamin-d-and-mental-health