Vitamin D plays an important role in regulating the levels of essential minerals such as Calcium and Phosphate. In turn, these minerals are used in various parts of the body including the bones, muscles, and teeth. Therefore, a deficiency in Vitamin D will lead to weak muscles and bones as well as dental problems. It is important to understand that Vitamin D can only be absorbed by the body when there is direct sun exposure on the skin. This means that a diet rich in Vitamin D is not enough to prevent the symptoms associated with a deficiency.
Vitamin D deficiency, as well as rickets and osteomalacia, tends to occur in persons who do not get enough sunlight
There are many symptoms associated with vitamin deficiency. Some examples of these symptoms include fatigue, dizziness, and mental confusion or forgetfulness.
There are many Vitamin D deficiency symptoms and here are the most common ones:ricketsosteoporosisobesityfatiguechronic backachecancersDiabetesHeart diseaseshyperparathyroidismdepression
Some of the symptoms of vitamin D deficiency include bone pain and muscle weakness. These symptoms are usually subtle though, so if one is at risk of this deficiency, blood tests would be recommended to check the levels of this vitamin.
Vitamin A doesn't have symptoms. Humans with either vitamin A toxicity or vitamin A deficiency have symptoms, however. Please be more specific with your question.
Rickets in children and osteomalacia are examples of deficiency diseases due to vitamin deficiency. Scurvy is an example of vitamin C deficiency. Beriberi is an example of vitamin B one deficiency. (Both, wet beriberi and dry beriberi.) Pellagra is an example of Niacin deficiency. Anemia is caused by deficiency of vitamin B 12 and Folic acid. Burning feet syndrome is caused by the deficiency of Pantothenic acid. Night blindness is caused by the deficiency of vitamin A. Kwashiorkor and marasmus are caused by deficiency of proteins and food, respectively. Poverty is caused by deficiency of kindness. Inequality is caused by deficiency of compassion.
The very most easy way to reduce the vitamin d deficiency and its effects is only the sunlight. Yes, sunlight is the one and only best solution to reduce the effects and deficiency of vitamin d. That too evening sunlight is more preferable to reduce the Vitamin D deficiency effects.
You get the symptoms and signs of vitamin A deficiency. Those are night blindness, Bitot's spots, keratomalacia and corneal ulcers and blindness. Your diet is usually deficient in vitamin D, unless you eat fish, specially fish liver. You get the vitamin D in presence of sunlight. Sub-clinical deficiency of vitamin D is very common, probably.
It develops symptoms of deficiency of that particular vitamin as an ailment.
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Rickets is a deficiency of vitamin D. So they get it from not having enough vitamin D in their diet. It could also be a deficiency in phosphorus, calcium or simply that the animal is not getting enough sunlight.