Wednesday, April 4, 2007

Kale is a great food....






Kale is a great food if you're looking to sustain your health and enjoy a delicious food at the same time. It's the organosulfur compounds in this food that have been main subject of phytonutrient research, and these include the glucosinolates and the methyl cysteine sulfoxides.

Although there are over 100 different glucosinolates in plants, only 10-15 are present in kale and other Brassicas. Yet these 10-15 glucosinolates appear able to lessen the occurrence of a wide variety of cancers, including breast and ovarian cancers.

Exactly how kale's sulfur-containing phytonutrients prevent cancer is not yet clear, but several researchers point to the ability of its glucosinolates and cysteine sulfoxides to activate detoxifying enzymes in the liver that help neutralize potentially carcinogenic substances. (These detoxifying enzymes include quinone reductases and glutathione-S-transferases).

For example, scientists have found that sulforaphane, a potent glucosinolate phytonutrient found in kale and other Brassica vegetables, boosts the body's detoxification enzymes, potentially by altering gene expression, thus helping to clear potentially carcinogenic substances more quickly. Sulforaphane, which is formed when cruciferous vegetables such as kale are chopped or chewed, triggers the liver to produce enzymes that detoxify cancer-causing chemicals, inhibits chemically-induced breast cancers in animal studies, induces colon cancer cells to commit suicide.

Sulforaphane may also offer special protection to those with colon cancer-susceptible genes, suggests a study conducted at Rutgers University and published online in the journal Carcinogenesis.

For about 20 years, we've known that many phytonutrients work as antioxidants to disarm free radicals before they can damage DNA, cell membranes and fat-containing molecules such as cholesterol. Now, new research is revealing that phytonutrients in crucifers, such as kale, work at a much deeper level. These compounds actually signal our genes to increase production of enzymes involved in detoxification, the cleansing process through which our bodies eliminate harmful compounds.

The phytonutrients in cruciferous vegetables initiate an intricate dance inside our cells in which gene response elements direct and balance the steps among dozens of detoxification enzyme partners, each performing its own protective role in perfect balance with the other dancers. The natural synergy that results optimizes our cells' ability to disarm and clear free radicals and toxins, including potential carcinogens, which may be why cruciferous vegetables appear to significantly lower our risk of cancer.

Recent studies show that those eating the most cruciferous vegetables have a much lower risk of prostate, colorectal and lung cancer-even when compared to those who regularly eat other vegetables:

So, what have you to wait? Buy or plant them for its goodness.... But it is also there in Double X!

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