Beware, Too Much Vitamin D Leads to Kidney Failure!

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Vitamin D — which exists in two forms: D2 (ergocalciferol) and D3 (cholecalciferol) — helps regulate the amount of calcium and phosphate in the body.

A Rael-Science post says Vitamin D toxicity is rare, but patients and clinicians must be aware of the risks of vitamin D use to limit complications related to hypercalcemia, according to a new case study.

According to the post, a 54-year-old man, after returning from a trip to Southeast Asia where he spent much of his two-week holiday sunbathing (6-8 hours a day), showed increased levels of creatinine, suggesting kidney damage or malfunction,” said University of Toronto’s Dr. Bourne Auguste and co-authors from Toronto General Hospital and the University of Toronto.

“After referral to a kidney specialist and further testing, it was discovered that he had been prescribed high doses of vitamin D by a naturopath, who recommended a dose of 8 drops every day.”

Over 2.5 years, the patient, who did not have a history of bone loss or vitamin D deficiency, took 8-12 drops of vitamin D daily, totaling 8,000-12,000 IU.

As a result, he had very high levels of calcium in the blood, which left him with significant kidney damage.

“Although vitamin D toxicity is rare owing to a large therapeutic range, its widespread availability in various over-the-counter formulations may pose a substantial risk to uninformed patients,” Dr. Auguste said.

The recommended daily allowance is 400-1,000 IU, with 800-2,000 IU recommended for adults at high-risk of osteoporosis and for older adults.

“Our experience informs us that patients and clinicians should be better informed about the risks regarding the unfettered use of vitamin D,” the researchers concluded.

The case study was published online in the Canadian Medical Association Journal.

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