| UPDATED: 13:56, Tue, Feb 9, 2021 Link copied Sign up for FREE health tips to live a long and happy life SUBSCRIBE Invalid email When you subscribe we will use the information you provide to send you these newsletters. Sometimes they'll include recommendations for other related newsletters or services we offer. Our Privacy Notice explains more about how we use your data, and your rights. You can unsubscribe at any time. Vitamin D is an essential mineral that helps protect the body from muscle or bone damage. But it's absolutely crucial that you avoid becoming deficient in the so-called 'sunshine' vitamin. What is the recommended daily dose of vitamin D?