http___www.krenizdravo.com_prehrana_vitamin-d-suncani-vitamin-koji-moze-pomladiti-kozu_1.xml
1.1 1.2 2.1 2.2 2.3 3.1 3.2 4.1 4.2 4.3 5.1 5.2 5.3 5.4 5.5 5.6 6.1
Several research findings in recent years have shown the association between Vitamin D deficiency and various health problems in humans. A latest study reveals the relationship between vitamin D levels and respiratory problems in infants. The study which was published in the January 2011 issue of Pediatrics, explained the importance of vitamin D for the immune system of fetus and newborns. The study was conducted by assessing the umbilical cord-blood level of vitamin D at birth for 922 healthy newborn babies. The infants were observed for over 5-year period for the incidence of respiratory infections and allergies by comparing the levels of vitamin D. The researchers found that the lower the levels of vitamin D, the higher the occurrence of respiratory infections. The babies who had less than 25nmol/L of vitamin D levels had undergone more infections and wheezing than the babies with higher vitamin D levels. The study supports the earlier findings which revealed that a higher intake of vitamin D in pregnancy reduced the incidence of wheezing and asthma in the babies. But this study was the first to test the vitamin D levels at birth and its association with respiratory symptoms. It was significant that a single low cord-blood level of vitamin D at birth would be related to wheezing even after several years. Vitamin D is essential for the initiation of immune mechanism and the study explains the importance of this vitamin right from the fetus stage. It is important to maintain enough vitamin D levels during pregnancy for the healthy immune system of the child. These levels should also be maintained right from their birth. One of the most efficient ways of getting adequate vitamin D is by exposing to the sun. But in winter, vitamin D supplements may be needed additionally. The normal recommended dosage of vitamin D3 supplements are 35 IU per pound of babies’ weight, 2000 IU for toddlers and older children. Via: Natural News.
1.1 2.1 3.1 3.2 4.1 4.2 5.1 5.2 6.1 7.1 8.1 8.2 9.1 10.1 11.1 12.1 12.2 13.1
Smatra se da trećina populacije ima nisku razinu vitamina D što može dovesti do niza simptoma od depresije do bolesti srca i raka kože. Ovaj vitamin nije samo potreban za zdravlje koštanog tkiva i zubiju već je odgovoran i za brojne druge funkcije poput usporavanja prijevremenog starenja, uspješne borbe protiv karcinoma te pomaže kod poremećaja ponašanja i depresije. Vitamin D je topiv u mastima i ne razgrađuje se kuhanjem. Vitamin D se prvenstveno sintetizira u koži izloženoj UV svjetlu, ako se ne dobije prehranom ili dodacima prehrani. U organizmu nastaje iz kolesterola. Zato su dostatne količine kolesterola u hrani jedan od preduvjeta stvaranja normalne količine vitamina D. Sposobnost kože da stvara vitamin D se smanjuje s godinama i to za 75% u dobi od 20 do 70, upravo iz tog razloga osobe koje imaju osteoporozu trebaju uzimati vitamin D u obliku dodataka. Uz to, povećava otpornost organizma na infekcije uzrokovane bakterijama. Vitamin D je ključan sastojak za lijep izgled kože Istraživanja pokazuju ako organizam proizvodi dovoljno vitamina D uspješno se mogu smanjiti akne, povećati elastičnost kože, potaknuti proizvodnju kolagena, poboljšati sjaj i smanjiti bore i izgled tamnih mrlja. Jedan od razloga manjka vitamina D je izbjegavanja sunca i svakodnevno nanošenje krema za sunčanje u strahu od preranog starenja i raka. Ako primijetite da Vam je koža blijeda i bez sjaja, imate nisku razinu vitamina D. Iskoristite sunčane dane i dopustite svojoj koži da proizvede dovoljno vitamina D. Vitamin D tijelo proizvodi kad je izloženo sunčevoj svjetlosti, no osobe koje imaju problema s kožom to ne koriste jer se najviše skrivaju upravo od sunca. Osim toga, mnoga zaštitna sredstva za sunčanje blokiraju vitamin D, čak i slabe kreme za sunčanje ( SPF 8 ) blokiraju stvaranje vitamina D za 95%. Mnogi dermatolozi preporučuju uzimanje tableta vitamina D kako bi osigurali dovoljnu razinu vitamina D. Preporuka je oko 400 i.j. na dan. Što se tiče namirnica, možete ga naći u ribi (sardina, tuna) i ribljem ulju, mlijeku, žumancu i prirodnim sokovima.