| 15.6.2012. 22:43 |
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Vitamin D i Kalcij pomažu produženju života
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Vitamin D With Calcium Increases Lifespan
Thursday, June 14, 2012 6:54 PM , By Sylvia Booth Hubbard
Vitamin D sa kalcijem povećana dužinu života
Uzimanje vitamina D u kombinaciji sa kalcijem smanjuje mortalitet starijih osoba, pokazala je studija u Danskoj, objavljena u Journal of Clinical Endocrinology and Metabolism. Ova studija sugerira da povećanje dužine života je samo jedno od povoljnih utjecaja koji se pripisuju "sunčanom" vitaminu, koji dobiva sve veće značenje za ulogu u održavanju dobrog zdravlja.
Studija je bazirana na osam kontrolnih uzoraka od kojih je svaki imao 1.000 učesnika. Oko 90% su bile žene, čija je prosječna starost bila 70 godina. Pacijenti su podijeljeni tako da jedni uzimaju samo preparat vitamina D a drugi vitamin D sa kalcijem.
U toku tri godine studije, smrtnost je smanjena za 9% u grupi pacijenata koji su uzimali vitamin D sa kalcijem. Zaključeno je da je to rezultat povoljnog djelovanja na smanjenje rizika od lomova.
To je najveća studija o djelovanju kalcija i voitamina D na mortalitet, rekao je Lars Rejnmark sa Aarhid sveučilišne bolnice u Danskoj, koji je vodio studiju. Naši rezultati pokazuju smanjeni mortalitet u starijih pacijenata koji su uzimali suplement vitamina D u kombinaciji s kalcijem, ali nije nađeno u pacijenata koji su uzimali samo vitamin D.
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“Some studies have suggested calcium (with or without vitamin D) supplements can have adverse effects on cardiovascular health,” said Rejnmark. “Although our study does not rule out such effects, we found that calcium with vitamin D supplementation to elderly participants is overall not harmful to survival, and may have beneficial effects on general health.”
Vitamin D has been shown to give health a boost in many areas including:
• Heart disease. A British study found that middle-aged and elderly people with high levels of vitamin D reduce their risk of heart disease by 43 percent.
• Stroke. A study published in Stroke found that men who consumed the least amount of vitamin D in their diets increased their risk of stroke by 22 to 27 percent when compared to those who consumed the highest levels.
• Breast cancer. An analysis of two studies found that women with the highest amounts of vitamin D in their blood lowered their risk of breast cancer by 50 percent when compared to women with the lowest levels.
• Diabetes. Australian researchers concluded that people with below-normal vitamin D levels increased their risk of developing Type 2 diabetes by 57 percent when compared with people whose levels were normal.
• Colon cancer. Cancer prevention specialists at the Moores Cancer Center at the University of California found that high amounts of vitamin D could cut colon cancer rates by two-thirds.
• Bone health. Studies have found that people with a vitamin D deficiency absorb 65 percent less calcium than those with normal levels, raising the risk of bone fractures. A British study concluded that having adequate vitamin D levels could reduce hip fractures by as much as 50 percent. Yet the U.S. Preventive Services Task Force issued a draft recommendation on Tuesday advising against healthy postmenopausal women routinely taking vitamin D and calcium supplements in doses equivalent to the usually recommended daily allowance. The supplement doesn't prevent bone fractures, the panel said, and could actually be harmful.
• Parkinson's disease. A Finnish study published in the Archives of Neurology studied 3,173 men and women aged 50 to 79 over 29 years. They found that those whose vitamin D levels were in the top 25 percent had a 67 percent lower chance of developing Parkinson's disease than those in the lowest level — the bottom 25 percent.
• Brain health. Recent research published in the Journal of Alzheimer's Disease found that vitamin D may work at the cellular level to clear the brain of amyloid beta plaques associated with memory-destroying disease.
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