(See Emergency evaluation of syncope in children and adolescents and Causes of syncope in children and adolescents.) background Although a common pediatric complaint in ambulatory settings, dizziness is a vague term that can describe many conditions, including lightheadedness (presyncope), anxiety, intoxication, ataxia, visual disturbance, hyperventilation, weakness, depression, and true vertigo.
Symptoms of Vitamin D Deficiency. Severe Vitamin D deficiency in children causes them to get the bowed legs, and sometimes arms, that are characteristic of the soft bone disease of rickets. In adults, this severe form of low Vitamin D causes a disease called osteomalacia, and can be a precursor to osteoporosis. Osteomalacia is similar to rickets, as it is a softening of the bones, but it doesnât lead to bowed legs as it does in children.
Not many foods contain vitamin D, and vitamin D added to foods is not well regulated. In addition, even eating foods with added vitamin D may not give you enough of the vitamin for optimum health. The two most common causes of low vitamin D levels are lack of sun and not enough intake of vitamin D by mouth. Other causes of low vitamin D levels include the bodyâs inability to absorb enough vitamin D (intestines made shorter by surgery, gastric bypass, and intestinal diseases), chronic kidney disease, and liver failure (Table 1).