Search results
Results from the WOW.Com Content Network
Decreased exposure of the skin to sunlight is a common cause of vitamin D deficiency. [1] People with a darker skin pigment with increased amounts of melanin may have decreased production of vitamin D. [3] Melanin absorbs ultraviolet B radiation from the sun and reduces vitamin D production. [3] Sunscreen can also reduce vitamin D production. [3]
A mother's nutritional intake during pregnancy is believed to influence and possibly offer protective effects against the development of allergenic diseases and asthma in children. [27] Maternal intake of vitamin D, vitamin E, and zinc have all been associated with a lower likelihood of wheezing in childhood, suggesting a protective effect. [27]
Vitamin D deficiency remains the main cause of rickets among young infants in most countries because breast milk is low in vitamin D, and darker skin, social customs, and climatic conditions can contribute to inadequate sun exposure.
Vitamin D deficiency: Usually asymptomatic, causes reduce bone density (osteomalacia), rickets, myopathy, and is associated with the development of schizophrenia. It is typically diagnosed by measuring the concentration of the 25-hydroxyvitamin D (25(OH)D) in plasma, which is the most accurate measure of stores of vitamin D in the body ...
Prenatal nutrition addresses nutrient recommendations before and during pregnancy. Nutrition and weight management before and during pregnancy has a profound effect on the development of infants. This is a rather critical time for healthy development since infants rely heavily on maternal stores and nutrient for optimal growth and health ...
“The date represents when manufacturers can guarantee the full strength of the supplement. Rather than becoming unsafe, they lose potency slowly over time.”
The increase in kidney clearance during pregnancy causes more iodide to be excreted and causes relative iodine deficiency and as a result an increase in thyroid size. Estrogen-stimulated increase in thyroid-binding globulin (TBG) leads to an increase in total thyroxine (T4), but free thyroxine (T4) and triiodothyronine (T3) remain normal. [5]
Hypovitaminosis D has been associated with many neurological conditions. However, an actual mechanism of action for each of the conditions has yet to be solidified. Many researchers have questioned whether the depletion of vitamin D actually causes these disorders or if vitamin D deficiency is a symptom of these disorders. [medical citation needed]