Vitamin D deficiency: Four warning signs of the ‘sunshine’ vitamin deficiency

When it comes to mood changes, Cleveland Clinic states that one sign can be depression.

A study, published in the Journal of Affective Disorders, linked vitamin D deficiency with depression in older adults.

Other studies have reported that supplementing vitamin D to people who are deficient helps improve seasonal depression, which typically occurs during the colder months when the body can’t synthesise enough of the vitamin organically. 

Although experts report a relationship between vitamin D and depression, more research is needed.