It is believed that the condition brought about by a lack of vitamin D is very rare especially in the developed countries. This observation is however not very accurate because the western world is also at risk of suffering from this condition due to the weather and the lifestyle. If you are careful enough, you may very well observe some of the common vitamin D deficiency symptoms in adults even in the western countries.
The most common of these symptoms is usually fatigue. This symptom is usually ignored in the initial stages because it is mild and people think it’s normal to get tired.
However as the days go by, the condition will become more severe and the victim will have a lot of difficulty when they try to work or study for long hours. The kind of fatigue that you will have because of lack of this nutrient is very severe to the point that you may not be able to do any work at all. Another one of the vitamin D deficiency symptoms in adults is a painful feeling when pressure is put on the bones. It is usually very common to hear a victim complaining of joint pains after they climb stairs or some hill.
Bones are also poorly formed and may get easily fractured if too much pressure is applied to them. People who suffer from obesity are more at risk of fracture because they tend to have more weight than is necessary. If you notice any of these vitamin D deficiency symptoms in adults, you should always take all the necessary steps to rectify the situation before it gets worse. This condition is very easy to treat if you identify it in its early stages before it becomes serious.
P.S. As per Wikipedia, The U.S. Preventive Services Task Force (USPSTF) recommended in 2011 that all women 65 years of age or older should be screened with bone densitometry.