Nephrologist Borja Quiroga warned about the uncontrolled abuse of vitamin D and supplements: "I've seen kidneys full of stones."

Vitamin D consumption has skyrocketed in recent years, driven by recommendations not always supported by medical criteria.

Nephrologist Borja Quiroga, in a post on his official Instagram account, warned about the negative effects of this practice, including serious cases of kidney stones and kidney failure.

Quiroga emphasizes that its use should be reserved for specific diagnoses such as osteoporosis or kidney disease, and criticizes its prescription without prior studies or adequate supervision.

Borja Quiroga explained that vitamin D facilitates the absorption of calcium, which, in excess and without medical necessity, can lead to the formation of kidney stones.

" I've seen people who have come in with kidney stones ," the specialist warned. He has also treated cases of vitamin D poisoning in healthy people, even detecting kidney failure.

Furthermore, the nephrologist emphasized that there is insufficient evidence that vitamin D reduces the risk of cardiovascular disease, tumors, or bone fractures in healthy individuals. Therefore, he maintains that its widespread use lacks scientific basis.

Quiroga also questioned the rise of childhood supplementation. According to him, there is no scientific justification for administering vitamin D to children without specific pathologies.

He denounced the current trend as being more of a fad than a real medical need.

In contrast to his critical stance toward many supplements, the doctor supports the use of creatine monohydrate.

It is considered safe, effective, and useful, even in the context of research into neurodegenerative diseases such as Alzheimer's.

He emphasized the importance of purchasing quality-assured products, such as those certified with the Creapure seal, and warned about the risk of consuming unreliable supplements, especially those distributed in gyms without adequate controls.

For Borja Quiroga, medical judgment and scientific evidence should guide any decision regarding supplementation. He noted that many products are prescribed without adequately assessing the patient's health status, which can lead to negative consequences.

*This content was written with the assistance of artificial intelligence, based on publicly available information released to media outlets. It was also reviewed by a journalist and an editor.