Vitamin D Deficiency

Vitamin D is an extremely important vitamin that has powerful effects on several systems throughout your body ().

Vitamin D functions like a hormone, and every single cell in your body has a receptor for it.

Your body makes it from cholesterol when your skin is exposed to sunlight.

It's also found in fatty fish and fortified dairy products, though it's very difficult to get enough from diet alone.

The recommended daily intake (RDI) is 400–800 IU, but many experts say you should get even more than that.

Vitamin D keeps your immune system strong so you're able to fight off viruses and bacteria that cause illness.

If you often become sick, with colds or the flu, and respiratory tract infections like colds, bronchitis and pneumonia low vitamin D levels may be a factor.

Vitamin D3 at a dosage of up to 4,000 IU daily may reduce your risk of respiratory tract infections.

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SUMMARYVitamin D plays important roles in immune function. The most common symptoms of deficiency is an increased risk of infections.

A vitamin D level of only 5.9 ng/ml. is extremely low, as anything under 20 ng/ml is considered deficient.

SUMMARYExcessive fatigue and tiredness may be a sign of vitamin D deficiency. 

SUMMARYLow blood levels of vitamin D may be a cause of bone pain and lower back pain. A depressed mood may also be a sign of vitamin D deficiency.

Vitamin D is controlling inflammation and fighting infection. Vitamin D plays a crucial role in calcium absorption and bone metabolism.

SUMMARY Getting enough of Vitamin D  vitamin is important for preserving bone mass.

SUMMARYHair loss may be a sign of vitamin D deficiency or the autoimmune condition alopecia areata.

One study in 120 children with vitamin D deficiency who had growing pains found that a single dose of the vitamin reduced pain scores by an average 57%

SUMMARY
Fortunately a vitamin D deficiency is usually easy to fix. You can  increase your sun exposure or eat more vitamin-D-rich foods, such as fatty fish or fortified dairy products.