The cold winter months can cause Vitamin D deficiency which can weaken bones and an increase in disorders such as SAD.

It is important to get an adequate intake of Vitamin D, especially in the winter months when sunlight is at a minimum. The importance of bone health is also becoming apparent for many young women with early onset osteoporosis a growing problem.

Calcium is critical for building and sustaining strong bones. Calcium-deficient adults risk developing osteoporosis, the bone-wasting disease that affects three million Britons and is blamed for more than 230,000 broken bones a year.

Other lifestyle factors such as smoking, skipping meals, drinking excess alcohol and caffeine may also reduce bone density levels, increasing the amount of calcium that the body needs.

Studies also have linked low calcium intake to an increased risk of heart disease, high blood pressure, and certain cancers.

Many people dislike the taste of calcium-rich foods and blame this as one of the key reasons for the lack of calcium in British diets, so a daily calcium supplement, such as Calcia is a simple way of increasing intake and making sure your bones are in top form.