Some symptoms of vitamin D deficiency include muscle weakness, bone pain and muscle aches, as stated by Merck Manuals. Vitamin D deficiency occurs due to inadequate exposure to sunlight and its a common condition worldwide. This condition tends to affect adults and children and causes different health conditions.
People who are at a higher risk of vitamin D deficiency include those who have milk allergies, avoid animal products and sunlight. Vitamin D is essential in the body as it helps in absorption of calcium from food. The main source of vitamin D is sunlight. It can also be found in different foods, including eggs yolks, liver, fish, fortified dairy products and fish liver oils, as stated by WebMD.
Vitamin D deficiency is associated with different health conditions, such as rickets, hypocalcemia and osteomalacia. However, these conditions may also be caused by other health conditions, including chronic metabolic acidosis, renal tubular disorders, hypoparathyroidism, kidney disease among others, as stated by Merck Manuals.
The level of vitamin D in the body can be tested through a 25-hydroxy vitamin D blood test. Treatment of the deficiency involves having more vitamin D through supplements and diet. Spending some time in the sun is also necessary.