What are the possible signs of Vitamin D deficiency?
How widespread can the effects be? What does the hormone do?
What is an evolutionary explanation for why we produce and use this hormone?
Tagged with: evolutionary explanation
Filed under: Questions About D Vitamin Deficiency
Hello there,
Vitamin D deficiency is most common in areas that receive little sunlight and in populations whose diets include few natural vitamin D sources. Milk, juice and cereals are often fortified with vitamin D in an effort to fight vitamin D deficiency.
-Symptoms of Severe Deficiency
Severe vitamin D deficiency causes the bones to soften and leads to bone disorders. In children, the most visible sign of vitamin D deficiency is bowed arms and legs. In adults, the most common symptom of vitamin D deficiency is generalized bone and muscle pain.
-Symptoms of Moderate Deficiency
Low vitamin D levels are linked to an increased risk ofmany diseases, including asthma, colds, high blood pressure, multiple sclerosis, osteoporosis and seasonal affective disorder.
–Other Symptoms
Other signs and symptoms of a vitamin D deficiency include bone fractures, fatigue, insomnia, low immunity and mood swings.
Susceptibility
Anyone can have a vitamin D deficiency, but because dark skin produces less vitamin D than light skin does, people of African descent are most susceptible. Obesity also increases susceptibility to vitamin D deficiency.
Considerations
Symptoms of a vitamin D deficiency are often subtle and overlooked. If you do not receive much direct sunlight or consume many foods that contain vitamin D, consider asking your doctor for a vitamin D test.
I hope that helps
http://www.webmd.com/diet/vitamin-d-deficiency says some symptoms are:
"Symptoms of bone pain and muscle weakness can mean you have a vitamin D deficiency. However, for many people, the symptoms are subtle. Yet even without symptoms, too little vitamin D can pose health risks. Low blood levels of the vitamin have been associated with the following:
* Increased risk of death from cardiovascular disease
* Cognitive impairment in older adults
* Severe asthma in children
* Cancer"
It says a lot more there as well including causes and how to treat it.
As far as "how widespread", do you mean within the body or like how many people have it? It can be more prevalent in certain areas with less sunlight if the people there don’t recognize that they need more Vitamin D.
Which hormone? Vitamin D isn’t exactly a hormone.
An evolutionary explanation? We need it and don’t get it from enough sources so our body makes it… that’s as simple as it needs to be.
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