When is it vital to take vitamin D supplements?
You will require vitamin D in a number of situations:

Lack of sun exposure: People who spend most of their time indoors or live in northern nations, which have limited sunlight exposure, may require more sun exposure to get their recommended daily intake of vitamin D.

Dark Skin: In the sun, those with darker skin absorb vitamin D less effectively than those with lighter skin.

Particular medical conditions: People who suffer from certain illnesses, like liver or intestinal disorders, may not be able to absorb vitamin D from their diets enough.

Elderly: As we age, our bodies' capacity to absorb vitamin D from sunlight decreases.

It is possible to be deficient in vitamin D without ever realizing it.