Too much vitamin D makes British international; the risks

RIBEIR PRETO, SP (FOLHAIRPRESS) – Last Tuesday (5), BMJ Magazine reports the case of a man who suffered vitamin D intoxication in the United Kingdom. He took for about a month the daily doses 250 times greater than recommended by experts.

O, who has not been identified, was admitted to the hospital with diarrhea, vomiting and nausea, as well as a complaint of ringing in the ear and leg cramps. He didn’t see a doctor until three months after the onset of symptoms, when he had already lost about 22 kilos.

The Brit took 150.00 IU (international units) vitamin D per day — the expert recommended daily dose of 4000 is 600 IU. He even made use of 20 other dietary supplements. When he arrived at the hospital, he had a weakened kidney and a high amount of calcium in his blood, which can interfere with the functioning of the heart and brain.

Vitamin D is essential for bone health and for maintaining the correct levels of calcium in the body. According to doctor Victoria Zeghbi Cochenski Borba, member of the Brazilian Society of Endocrinology and Metabology and professor at UFPR (Federal University of Paraná), “vitamin D is important in the incorporation of the mineral in the bone, for it to become firmer, harder”.

“With a more severe vitamin D deficiency, calcium absorption is reduced and calcium will remain. In children we call it rickets; in adults we call it osteomalacia”, said the endocrinologist.

Nasa disease causes bone deformities in children and muscle weakness and, in adults, microfractures, muscle pain and falls.

Also according to Borba, the substance is also important for the proper functioning of the immune system cells. The lack can worsen infections, autoimmune diseases and respiratory diseases such as asthma.


According to nutritionist Maria Cláudia Bernardes Spectoto, a recommended daily dose of vitamin D is between 6 and 70 years of age and 800 IU for animals 71 years of age or older.

The best source of vitamin D is the sun, he says. Ultraviolet rays stimulate the formation of a vitamin D precursor in the skin, which is then activated in the liver and we rinse. About 15 minutes of exposure with bare arms and legs is enough to produce the equivalent of 8 IU of vitamin D.

According to Spexoto, who holds a PhD in nutrition from Unesp (Universidade Estadual Paulista) and a researcher at the Laboratory of Studies in Epidemiology and Aging at UFSCar (Federal University of São Carlos), vitamin D can also be found in fatty fish, in the yolk boiled egg, cod liver oil and beef.


Pregnant women, people with obesity and people with chronic diseases metabolize more vitamin D and need a diary for larger people of consumption. Elderly people and residents of cities with low incidence of sunlight may also need supplementation.

Black people should beware. Melanin reduces the synthesis of vitamin D and, therefore, people with dark skin will take the sun with a greater body surface area should be exposed – without a shirt, for example.

According to Borba, people who go to the beach daily and who go a few times a year don’t need to worry.

Most vitamins, when consumed in excess, are eliminated by the body, but vitamin D is in the liver and in fat cells. This also happens with vitamins A, E and K. This slight accumulation causes the high consumption of the substance’s toxic substances.

Excess can cause liver and kidney failure, increased blood calcium, high blood pressure and problems with the functioning of muscles such as the heart and nervous system.


A substance is part of the so-called Kit, a set of drugs that has no scientific proof for the treatment of the disease that was prescribed by doctors to treat the coronavirus infection. Pharmacy data from the Federal Council of 2020 showed that, in the first months, of this supplement in Brazil, they increased by 83% compared to the same period of the previous year.

According to the doctor Alexandre Naime Barbosa, professor at Unesp and vice president of SBI (Brazilian Society of Infectious Diseases), people with vitamin D deficiency are more likely to develop severe Covid, but supplementation should not be used in the treatment or prevention of the disease. illness.

A research study by UFSCar and USP (University of São Paulo) published in the scientific journal Clinical Nutrition last month showed that patients with vitamin D deficiency had a higher risk of mortality than patients with normal levels of vitamin D.

However, according to Barbosa, “the replacement of vitamin D in this short period [de infecção por covid] will not solve the problem. You a while until the vitamin is is and replaced. It is not indicated in patients with Covid-19 the use of vitamin D, vitamin C or any other vitamin.”

According to the infectologist, some antiviral drugs against the disease are unique and as unique methods of preventing infection are vaccines, wearing a mask and avoiding agglomerations.

Leave a Reply

Your email address will not be published.