Vitamin D: Doctor Talks About Health Benefits and Risks

Vitamin D: Doctor Talks About Health Benefits and Risks


Endocrinologist explains the functions of vitamin D and the dangers of supplementing without professional guidance

Vitamin D is essential for the functioning of the body, as it performs a number of functions that are fundamental to maintaining health. In addition to stimulating the absorption of nutrients that contribute to strengthening bones, it also helps regulate immunity and metabolism.




“Vitamin D is essential for regulating calcium and phosphorus metabolism, which is essential for the formation of healthy bones and teeth,” explains endocrinologist Lanna Gomes, a collaborator at the VilavĂ­ Clinic. “It also modulates the immune system, influences muscle function and regulates insulin secretion, playing a role in the prevention of chronic diseases,” she adds.

Vitamin or hormone?

Vitamin D eventually became considered a hormone because of the conversion in the liver and kidneys into calcitriol, which is the active form of the substance. “Calcitriol acts on various tissues in the body, regulating gene expression and influencing multiple physiological functions,” Lanna points out. As he explains, the entire process is characteristic of hormonal action, justifying the vitamin’s reference as a hormone.

The endocrinologist also highlights the relationship between vitamin D and weight loss. “Although they are still being studied, there is evidence that adequate levels of the vitamin can influence energy metabolism and fat burning, as well as modulate hormones related to hunger and satiety, such as leptin,” says Lanna Gomes.

Secure integration

Regarding supplementation, the doctor points out that certain groups are more susceptible to vitamin D deficiency, which requires supplementation of the nutrient in the body. These include elderly patients, people with limited sun exposure, individuals with darker skin, obese patients, pregnant women, and people with conditions that affect nutrient absorption, such as celiac disease.

In recent years, medications have become part of routine consumption for many people. In fact, a monitoring carried out by the Institute of Science, Technology and Quality (ICTQ) shows that 79% of Brazilians over the age of 16 admit to taking medications without a prescription. However, even in groups that need supplementation, it is necessary to be aware of the dangers of self-medication, which can cause health complications.

“Supplementation without medical advice can lead to hypervitaminosis D, which causes hypercalcemia. The condition is characterized by high levels of calcium in the blood and can lead to symptoms such as nausea, vomiting, weakness, and in severe cases, kidney damage and calcification of soft tissue,” explains Lanna. Therefore, it is important that supplementation is based on laboratory tests and an individualized clinical evaluation of each patient.

Source: Terra

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