The doctor told about the consequences of vitamin D overdose

In recent years, vitamin D intake has become the norm for many people. But its increased content in the body, more than 150 ng/ml, can lead to an accumulation of calcium in the blood, which causes its deposition in the heart muscle, on the walls of the intestine and stomach, Elena Aleksentseva, a general practitioner and pediatrician at Invitro, told Izvestia on November 8.

Also, according to her, excess vitamin D can have a direct toxic effect on cell membranes and metabolism. If you take too large doses of vitamin D, it can lead not only to an increase in its content in the body, but also to an increase in the absorption of calcium by the body with the development of hypercalcemia — an increase in the level of calcium in the blood.

"Against the background of this disorder, digestive disorders, dizziness, increased weakness and confusion occur. Another consequence of vitamin D hypervitaminosis is a violation of vitamin K2 activity, resulting in bone loss. Also, an increase in this substance in the body leads to kidney damage," the expert added.

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But it is impossible to achieve vitamin D levels that are dangerous for the body only by staying in the sun or following a special diet: this can only happen due to taking medications or dietary supplements. This situation most often occurs in childhood when taking medications and supplements aimed at preventing rickets, especially when taking fish oil preparations at the same time, she stressed.

In normal dosages, vitamin D is useful, Aleksentseva noted. For example, it enhances the sensitivity of insulin receptors, strengthens bone tissue, promotes the synthesis of sex hormones (testosterone, estrogen, progesterone), improves reproductive function, affects innate and acquired immunity, and prevents the formation of tumors, depression, and Parkinson's disease.

First of all, monitoring vitamin D levels and taking medications to maintain its level is indicated for patients with rickets, body weight deficiency, prolonged bed rest, limited sun exposure, over the age of 65, people with osteoporosis and osteomalacia, malabsorption syndrome, liver and kidney diseases, parathyroid gland, allergic and autoimmune diseases diseases related to obesity, lymphomas and granulomatous diseases, the doctor noted.

On October 29, Vera Seryozhina, an expert at the LabQuest medical company, told Izvestia the reasons for vitamin D indigestion. The main reasons that this element "passes by" the body are most often associated with impaired bile production, genetic features, and vitamin K deficiency.

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