Could your calcium supplement be raising your risk of having a heart attack?

Insider Secrets | 20 August, 2010 | Hot Topics:

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Dear friend,

Calcium in pills, unlike calcium in foods, causes a rise in blood calcium levels that could damage arteries. Also, excess calcium in the blood blocks the conversion of inactive vitamin D to active vitamin D, and lack of active vitamin D increases risk for heart attacks.

A review of 11 controlled studies involving about 12,000 patients found that taking calcium pills (at least 500mg/day) without also taking vitamin D is associated with an almost 30% increase in heart attack risk (British Medical Journal, published online July 29, 2010).

Saving your eyesight...

Of all our senses, sight is no doubt the one we rely on most. The prospect of losing your vision is truly terrifying. After all, if your vision diminishes, your quality of life also declines—especially when it comes to activities like driving and reading.

The #1 Cause of Vision Loss

The most severe eye disease that can impact your sight is age-related macular degeneration (AMD), which is a leading cause of vision loss among middle-age and elderly people. AMD affects the macula, an oval spot near the center of the retina that controls central vision.

But AMD isn’t the only disease that can rob you of your sight. According to a study conducted by Lighthouse International, a nonprofit organisation dedicated to researching vision impairment and rehabilitation... One in six adults over the age of 45 has some type of vision impairment including cataract, glaucoma or loss of night vision.

These numbers just grow worse as we get older: About 15% of 45 to 64 year-olds report vision impairment, increasing to 17% for those aged 65 to 74 and 26% of those older than 75.

More Causes of Vision Impairment

Vision impairment has a variety of causes, including diabetes, tobacco use, long-term sun exposure, eye injuries and the use of certain pharmaceuticals such as steroids.

But, despite all of this gloom and doom, most people can take charge of their vision with promising results — no matter how old they are. These nutrients can help prevent the onset of eye disease, improve your eyesight and perhaps even reverse any damage already done...

Lutein and Zeaxanthin

These nutrients function as blue-light filters and antioxidants. Harvard researchers report that people with higher levels of lutein and zeaxanthin had a 57% decreased risk of macular degeneration, compared with people eating the least.

Bilberry

This blue-purple berry is high in antioxidant compounds called flavonoids that prevent a host of eye problems, such as retinal inflammation, macular degeneration, retinitis pigmentosa, glaucoma, cataracts, nearsightedness, eye fatigue and night blindness.

Legend has it that British Royal Air Force pilots flying midnight missions during World War II ate bilberry jam to improve their night vision... And current research shows that bilberry accelerates the regeneration of retinol purple, a substance necessary for reliable eyesight.

Antioxidant Vitamins and Minerals

In the famous Age-Related Eye Disease Study, researchers at the National Eye Institute found that, while individual antioxidants help protect vision, the greatest disease-risk benefit was achieved with a combination of vitamin C, vitamin E, beta carotene and zinc.

DHA- The Major Fat in Retinal Tissue

Another nutrient that most people don’t think of when they consider eye supplements is fat. One specific type of essential fatty acid called DHA is the major fat in retinal tissue. It plays a strong role in the photoreceptor cells of the retina (nerve cells in the retina that are responsible for our ability to see).

For more tips and secrets on vision health click here!

To your health,

 

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References:

Carpentier S, et al. Associations between lutein, zeaxanthin, and age-related macular degeneration: an overview. Critical Reviews in Food Science and Nutrition. 2009;49:313-326.

Chiu CJ, et al. Does eating particular diets alter risk of age-related macular degeneration in users of the age-related eye disease study supplements? British Journal of Ophthalmology. 2009 Jun 12. [Epub ahead of print]

Svobodová A, et al. Bilberry extract reduces UVA-induced oxidative stress in HaCaT keratinocytes: a pilot study. Biofactors. 2008;33:249-266.

Tan AG, et al. Antioxidant nutrient intake and the long-term incidence of age-related cataract: the Blue Mountains Eye Study. American Journal of Clinical Nutrition. 2008;87:1899-1905.

Dr. Gabe Mirkin http://www.healthiertalk.com

Dr. David Blyweiss http://www.healthiertalk.com

 
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Which have been your favourites? Email me and let me know which articles are your favourites. pascale@fsp.co.za

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