Doctors from the American Center for Sight said that vitamin D is produced by the body in response to exposure to sunlight on the skin. If it is low or you have a special diet that lacks foods with this vitamin, a deficiency and corresponding health problems can develop. For example, uveitis is an inflammation of the choroid of the eye, writes the Daily Express.
This problem has a number of possible causes, including infection, digestive disorders, complications from eye surgery, trauma to the eye, inflammatory diseases, and autoimmune diseases.
Among the symptoms of uveitis are also: - sensitivity to light; - blurry picture; - floating spots in front of the eyes; - pain and / or redness of the eyes.
The scientists measured blood levels of vitamin D and vitamin D intake and exposure. Patients with active uveitis had lower blood levels of this vitamin than those without disease. Also, the addition of vitamin to the diet reduced the incidence of uveitis. The researchers concluded that vitamin D supplements may help prevent relapse.
Doctors also reminded that too much vitamin D can lead to undesirable consequences such as frequent urination.
Vitamin D is fat-soluble, meaning it cannot be excreted in the urine. Taking too much of it can lead to calcium retention in the blood, causing hypercalcemia (excessive levels of calcium in the blood). Therefore, most people require about 10 mcg of vitamin D per day.
Previously, experts named foods that compensate for the lack of vitamin D. According to experts, oily fish such as salmon, tuna or mackerel do the best for this task.