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June 30 2005
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Grains & Sugars Can Contribute to Cataracts

 
Eye Examination

Aside from weight loss, limiting consumption of carbohydrates holds many profound health benefits. For example, it seems early cortical cataracts, the second most common kind that occurs in the cortex of the lens of the eye, are spurred by the quantity of carbohydrates one consumes, not the quality.

Three principal forms of age-related cataracts exist: Nuclear and cortical opacities affect the center and adjacent peripheral tissue of the lens, respectively, while posterior subcapsular (PSC) opacities affect the posterior aspect of the lens.

And while few published human studies have evaluated associations between carbohydrates and lens opacification, one study set out to test the hypothesis that long-term carbohydrate intake and dietary glycemic index are linked to the odds of early lens opacities.

Quantity, Not Quality

The study involved 417 middle-aged female patients; dietary data was based on an average of semiquantitative food-frequency questionnaires collected over a time span of 14 years. (Opacities were assessed by using the Lens Opacity Classification System III.) Based on the information collected, researchers found:

  • Those who ate the most carbs were almost 2.5 times more likely to suffer from cortical cataracts.

  • High carb intake was not associated with nuclear cataracts -- the most common kind of cataract.

  • Dietary glycemic index did not relate to risk of either cortical or nuclear opacity.

Moreover, during the course of the study -- in which the average patient was about age 60 and had a body mass index of 24 -- scientists found the daily intake of more than 200 grams of carbohydrates nearly doubled a woman's risk of cortical cataracts.

American Journal of Clinical Nutrition June 2005;81(6):1411-141



Dr. MercolaDr. Mercola's Comments:

While the above study illustrates the importance of restricting your carbs to healthy "slow" carbs to reduce your risk of cataracts, there is another, perhaps even more important, contribution to cataracts.

I have learned that the use of glasses, contact lenses or LASIK will accelerate nearly every chronic degenerative disease of the eye including:

  • Glaucoma
  • Cataracts
  • Age-related macular degeneration
  • Retinal detachment

I've worked with a leading clinician to provide you with comprehensive training materials to successfully restore your vision -- naturally, using a century-old method. I have successfully used the technique to recover virtually all of my near vision due to presbyopia, but the technique works equally well for myopia.

However, it is very clear that the foods you choose also have a powerful influence on degenerative diseases of your eyes. Your body prefers the slow carbohydrates found in fruits and vegetables rather than rapidly released sugars and other sweeteners, flour or even whole grains. The carbs in most vegetables tend to have lower total amounts of carbohydrates, and the speed at which your body converts them to simple sugars is comparatively slower than these other foods.

Your body is also better adapted to eating the slow carbs in fruits and vegetables, as these carbs have been in your ancestors' diet for thousands of years longer than sugar and grains.

While nutritional typing has taught me that some people thrive with a higher intake of slow carbohydrates, the above study provides an excellent illustration that anyone, regardless of their nutritional type, who eats an excessive amount of fast carbohydrates can develop chronic degenerative diseases.

Excessive carbohydrate consumption will stimulate negative physiology in your body like leptin resistance and elevated insulin levels.

As is the case in nearly every phase of life, balance is a major key to success in maintaining your health. Use nutritional typing and the Take Control of Your Health to determine what types of foods your body will thrive on and the proper balance of carbohydrates, fats and proteins you require, but try to refrain from overdoing it in any direction.

Related Articles:

Are You at Risk for Cataracts?

Scientific Proof Carbohydrates Cause Disease

Even "Good" Fats Can Cause Blindness

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