Vitamin D is much needed for bone health, supporting immunity, regulating mood, and inflammation– thus making it important for our overall health and well-being. Apart from getting it from foods, Vitamin D is also synthesised in the body when exposed to sunlight and hence it is also called the “sunshine vitamin”. However, a large number of people across the world suffer from Vitamin D deficiency, often without even knowing it. This deficiency is mainly due to poor diets and limited sun exposure, and it can lead to more than just fatigue or low mood— it’s been linked to several serious health issues, some of which can be long-term or even life-threatening if ignored. Here we list some serious diseases Vitamin D deficiency can cause: