Vitamin D products should be controlled by pharmacies

The debate around vitamin D is running wild. According to research, excessive amounts of vitamin D have more detrimental than beneficial effects, says Pentti Tuohimaa, Professor Emeritus of Anatomy at the University of Tampere.

Tuohimaa says that vitamin D should not be sold freely as a food supplement.

He would not make vitamin D a prescription drug, but it should be sold in pharmacies so that pharmacists could instruct their customers about the right dosage.

”It is astonishing that vitamin D is still classified as a food supplement. It works like a medicine and too large doses are harmful,” he says.

A vitamin D supplement is a prohormone which transforms into a hormone inside the body. Like any other hormone, vitamin D has a specific optimal level. Both too small and too large amounts have a detrimental effect.

For this reason, Tuohimaa looks at the uproar caused by the analyses conducted at the University of Eastern Finland from another perspective. He is happy that the vitamin D content of the tested products was smaller, not larger, than indicated by the product description.

“It surprised me that the vitamin level of one product was zero. On the other hand, this product was supposed to have the highest level of vitamin D, 125 micrograms, so it was quite lucky that the analysis showed no vitamin content. Unfortunately, in an analysis conducted by another laboratory, this product had the amount of vitamin D indicated by the package.”

Read the full story on the University of Tampere website

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