Thursday, February 12, 2009

Vitamin D Supplementation... Your own personal little ray of sunshine!


Vitamin D has always been known for its role in the utilisation of Calcium and bone health. Now new research seem to be supporting the role of Vitamin D in the protection against heart attacks and strokes too.

This certainly makes Vitamin D (also known as the sunshine vitamin as we can get a good dose daily from simple exposure to the sun and it's UV Rays) a must for anyone and everyone conscious of their heart health

Researchers also found those with low blood levels of the sunshine vitamin were twice as likely to suffer heart failure, a heart attack or a stroke than those with higher levels.

The risk was still 62 per cent after adjusting for well-established risk factors such as high blood pressure and high cholesterol.

Dr Thomas Wang, who led the research, said: 'Our data raise the possibility that treating vitamin D deficiency, via supplementation or lifestyle measures, could reduce cardiovascular risk.'

The five-year study, published in the respected medical journal 'Circulation', involved 1,700 sons and daughters of the participants in the Framingham Heart Study, a major investigation of heart disease risk factors launched in 1948.

Most of the body's supply is provided by sunlight on the skin. The rest comes from foods such as fish, eggs and fortified milk and breakfast cereals.

The mechanism by which it works is only partly understood, but Vitamin D has been shown to slow the rate of growth of cancer cells and may boost the function of blood vessels or the immune system.

Although most of those living in northern Europe are not sufficiently lacking in vitamin D to be classified as deficient, some experts believe blood levels should be higher to optimise health.

Only 10 per cent of the study sample had levels considered ideal even for bone health.

A spokesman for the Health Supplements Information Service said: 'Dietary surveys show that large numbers of people in Northern climates, including Britain, have blood levels of vitamin D which are too low'.

'Diet does not provide enough vitamin D and the need for each of us to expose our skin to sunlight for short periods of time to make it runs contrary to advice to avoid sunbathing to the reduce risk of skin cancer'.

'Confusing messages, combined with seasonal variation in the strength of UV radiation, geographic-latitude, time of day, cloud cover and use of sunscreen merge to hamper reliable vitamin D synthesis'.

Because of these unstable factors and the negative warning surrounding UV exposure brings many people to the conclusion that now is the time for Vitamin D supplementation on a daily basis. Most nutritionists and Nutritional Health professionals would support this as Vitamin D is quite difficult to obtain from diet alone. However, like all nutritional supplement regimes, it is always wise to get good advice from your nutritionist or GP first to make sure you actually need it or are in a deficiency risk category.

2 comments:

  1. I agree with the idea of supplementation where it is difficult to get enough from a normal 'healthy' diet (does that actually exist these days)? Obviously Vitamin D falls into this category and lets face it, the UK in the middle of winter is not the best place to catch a tan so a little ray of Vitamin D is hard to find.

    That said, there are lots of food groups that are difficult to get from actual food/diet and so supplements once more seem to be the answer. Personally I think it is about balance. There are so many people who say supplements are unnecessary and food should be all we need but that open up a whole debate about the quality of food and the methods by which it is processed.

    But as far as Vitamin D goes, personally I am up for all I can get from food, supplements and a great day on the beach... that will be the one day of British Summertime we all long for. Cheers
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  2. Vitamin D seems to be all over the media at the moment and as far as I can tell there is no smoke without fire. The same goes for Omega Oils. A year ago, you couldn't move for the media saying 'Fish oils make your kids smarter, calmer, happier...etc'. Well I am happy to say, I was taken in by the hype and am very glad I was... the effects on my two girls is beyond belief. So as regards Vitamin D, yes I am going to get some of that too. Like the person before said, there is no point waiting around for the perfect diet of the elusive British sunshine. Hope that helps. Bye.
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