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Diet rich in Vitamin D may promote good memory

June 12, 2009 by  

Diet rich in Vitamin D may promote good memory Scientists believe cognitive decline and other memory problems in humans may be mitigated through a diet rich in oily fish which are high in vitamin D.

A study, conducted by European researchers, compared the cognitive performance of more than 3,000 men aged 40 to 79 years, and found that those with higher levels of vitamin D performed consistently better in a test that assessed an individual’s attention and speed of information processing.

The results held true even when factors such as depression, season and levels of physical activity were taken into account.

According to lead author Dr. David Lee from the University of Manchester School of Translational Medicine, previous studies of the relationship produced inconclusive results, "but we observed a significant, independent association between a slower information processing speed and lower levels of vitamin D."

Vitamin D is primarily synthesized in the skin following sun exposure, but can also be obtained from oily fish, dairy products and nutritional supplementation.

Recent research has found Americans may be at a risk of vitamin D deficiency as its average blood levels appear to have decreased in the U.S. between 1994 and 2004.
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  • Ted Hutchinson

    While of course salmon is an excellent source of vitamin d3, each portion providing around 400iu we must not forget that our bodies use around 5000iu daily. It’s therefore unlikely that anyone will consume more than 10% of their daily vitamin D requirement from food.
    When it is available, 20~30 minutes of full body midday sun exposure for those with white skins will allow their skin to make an effective amount of D3 but darker brown skins require longer exposure and those areas most tanned are the least effective at making D3.
    Up to 10,000iu/daily, even in areas with UVB available from sunlight throughout the year is known to be safe, so taking just 5000iu/daily will ensure most people achieve the 55ng associated with least chronic disease incidence.
    To be sure you are not underestimating your vitamin D status it is worth checking your 25(OH)D status. Grassrootshealth.net D Action are a charity promoting the latest Vitamin D3 understandings. As part of on ongoing trial they offer, at cost price, $40 regular postal 25(OH)D screening worldwide.

  • s c

    Yes, we do need more Vitamin D research (especially D3). Soner or later the FDA/AMA herd will catch on, but they will no doubt resist until society forces them to surrender.
    If I was in a tacky mood, I’d say further research on Vitamin D – emphasis on D3 – is absolutely necessary. It is likely that libs will start to jump ship when it becomes even more obvious that most libs in Congress have not a clue as to why they are in Washington. I’m sure this condition is not contagious, but it does look most peculiar when Congress and the White House have such serious memory issues [who am I? what planet am I from? where am I? what am I doing here? how did I get here? I represent who? where's my mommy? waaaaa!].

    • W L Anderson

      What in the hell does Vitamin D3 have to do with libs “jumping ship”? This has to be the dumbest blog I’ve seen in a long time.

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