http___www.kakolijeciti.com_vitamin-d-moze-smanjiti-mogucnost-pojave-raka-dojke__2.xml
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Vitamin D fights colon cancer 22nd January 2010 - People with high levels of vitamin D in their bloodstream appear to be at much lower risk of getting cancer of the colon, say researchers. The risk was cut by as much as 40% in those with the highest levels of the vitamin. Vitamin D can be obtained from diet, but for most people it’s derived from exposure to the sun. Several studies have already suggested there could be a link between vitamin D and colorectal cancer, but the evidence has been inconclusive. So, researchers from across Europe set out to see what impact vitamin D circulating in the blood, as well as dietary intakes of vitamin D and calcium, had on colorectal cancer rates in western Europe. Their conclusions are published on bmj.com - the online edition of the British Medical Journal. Large scale European study The researchers used data from a study of more than half-a-million people drawn from 10 European countries. Between 1992 and 1998 participants filled out questionnaires about their diet and lifestyle and gave blood samples. The subjects were monitored for several years, during which time 1,248 of them were diagnosed with colorectal cancer. These participants were then matched against the same number of people who had not been diagnosed with the disease. The researchers found that those with the highest levels of vitamin D in their blood were almost 40% less likely to develop colorectal cancer compared to those with the lowest levels.
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Studija naučnika s University of California iz San Diega pokazala je da kod žena sa potvrđenom visokom razinom vitamina D u organizmu, postoji i do 50% manji rizik obolijevanja od raka dojke. Čak je i blago povišena razina vitamina D bila povezana s 10%-tnim smanjenjem rizika za pojavu bolesti, utvrđeno je u istraživanju u kojem je sudjelovalo više od 120000 ispitanica. Vitamin D se u organizmu proizvodi nakon izloženosti sunčevoj svjetlosti, a prisutan je i u ribi, posebno onim vrstama koje obiluju uljem. Viši unos vitamina D se posebno preporučuje starijim osobama. Naučnici upozoravaju kako pretjerana izloženost suncu može imati negativan utjecaj na zdravlje te dodaju kako previsoka razina vitamina D u organizmu može dovesti do opasnog povećanja količine kalcija. Dakle pazite da ne pretjerujete, te održavajte optimalnu razinu vitamina D u organizmu.