Vitamine D tegen macula degeneratie*
Uit een Amerikaanse studie onder ruim 1.300 vrouwen van 50-75 jaar blijkt dat inname van voldoende
vitamine D de kans op macula degeneratie flink kan verminderen. De tijd die in de zon doorgebracht werd was niet van belang wel de
inname van vitamine D met voeding en supplementen. Zij die de meeste vitamine D innamen hadden 59% minder kans op het krijgen van macula degeneratie dan zij die weinig vitamine D innamen.
More evidence on vitamin D and macular degeneration
Consuming vitamin D from foods or supplements might reduce the risk of developing age-related macular degeneration (AMD) in women younger than 75, according to a study published this week by the Archives of
Ophthalmology.
A team led by researchers at the University at Buffalo, N.Y., examined data on blood levels of vitamin D among 1,313 women 50 to 75 enrolled in the ongoing Women's Health Initiative study. In women younger than 75, vitamin D from foods and supplements—but not from time spent in direct sunlight—was linked with decreased risk of developing early age-related macular degeneration. Those who consumed the most vitamin D had a 59 percent decreased risk of developing it compared with women who consumed the least.
The researchers suggest that vitamin D might help regulate the immune system and perhaps help prevent diseases, such as AMD, that are linked to inflammation. The top food sources of vitamin D in the study were milk, fish, fortified margarine and fortified cereal.
Bottom line. This is the second study to find that vitamin D might help protect against AMD, the researchers said, but more research is needed
Sources
Vitamin D Status and Early Age-Related Macular Degeneration in Postmenopausal Women
[Archives of Ophthalmology] (Mei 2011)
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