So, what are some common symptoms of a Vitamin D deficiency? If you often feel very tired, a bit blue, are missing that get up and go and zest for life, think about Vitamin D. If you find that your head sweats easily, you suffer from regular gum problems or that your digestion is not up to scratch you might also need more Vitamin D. If you are getting sick often, or find that it takes longer to recover from sickness or injuries, consider your Vitamin D levels. Vitamin D is essential for the body. It keeps your bones strong and is a major player in osteoporosis. It helps regulate your blood pressure, cholesterol levels and helps keep Type 2 diabetes at bay. It reduces inflammation in the body and helps prevent infections and allergies. It helps keep your teeth caries and cavity free. It helps alleviate depression symptoms. It also helps combat certain cancers, erectile problems, osteoarthritis, and a range of cardiovascular diseases.