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Vitamin D deficiency Vitamin D is essential for healthy bones. We get some of it from food, but most comes from sunlight. Most people should be able to get all the vitamin D they need from summer sun and a healthy balanced diet. However, up to a quarter of the population has low levels of vitamin D in their blood. Not getting enough sunlight is one reason some people suffer from vitamin D deficiency, putting them at risk of bone problems, including rickets in children and osteomalacia in adults. Some research suggests that not getting enough vitamin D may also be linked to heart conditions, diabetes, asthma and cognitive impairment in older adults. Vitamin D is also found in oily fish, such as salmon, mackerel and sardines, eggs, fortified fat spreads, fortified breakfast cereals and powdered milk. However, it is hard to get enough vitamin D just from food. Vitamin D deficiency at-risk groups The Chief Medical Officers of the UK say these groups are at particular risk of vitamin D deficiency: - Pregnant and breastfeeding women, especially teenagers and young women. - Infants and children under 5 years of age. - 65 year olds and over. - People who have little or no exposure to the sun. This includes covering-up for cultural reasons, people who are housebound or who stay indoors for long periods of time. - People with darker skin, such as African, African-Caribbean and South Asian origin. These groups are not able to make as much vitamin D as those with paler skin. WebMD Medical Reference
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Vitamin D može smanjiti mogućnost pojave raka dojke 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.