Vitamin D deficiency symptoms: Flank pain could be a sign you lack the sunshine vitaminSS

Studies reveal that older people are particularly prone to a depressed mood when lacking in vitamin D.

A controlled experiment found doses of vitamin D improved symptoms of depression, including those who suffer from seasonal depression.

Aside from taking a stroll in the sunshine, a good way to incorporate more vitamin D into your body is through your diet.

Foods rich in vitamin D include fatty fish, such as salmon, trout, tuna and mackerel.