Tuesday, December 13, 2011

Watercress - to reduce cancer risks



Watercress: The Miracle Food

 
Watercress is called Sai Yeong Choy in Cantonese; or 西洋菜 in Mandarin.

UK Scientists say watercress is the new super food, able to prevent certain types of cancer. According to a study published this week in The British Journal of Nutrition, the consumption of a three ounce portion of watercress reduced the presence of a key tumor growth factor six and eight hours after eating the watercress in healthy patients who had previously been treated for breast cancer. The study was conducted by the Cancer Research Center at the School of Medicine ,   Southampton General Hospital in the United Kingdom .

The study concluded watercress is as therapeutic as traditional drug treatments with tamoxifen and herceptin, commonly used chemotherapy drugs. The study also said that through regular consumption, watercress "has the potential to confer valuable protection against cancer in general." "Watercress has the ability to turn off HIF1, a signal sent out by cells calling for blood supply," said noted aging scientist Dr. Nicholas Perricone.  When HIF1 becomes incorrectly regulated, otherwise harmless precancerous clusters of cells have the opportunity to grow to form invasive tumors.  

"Scientists have been looking for anti-angiogenesis agents for years because if we can turn off the blood supply, we can kill the cancer," said Perricone.  "And it looks like watercress can do that." Another study published in The American Journal of Clinical Nutrition in February of 2007showed that, in addition to reducing DNA damage, a daily dose of watercress increased the ability of cells to further resist DNA damage that may be caused by free radicals. 

In the study, 60 men and women, half of whom were smokers, consumed their usual diet plus 85 grams of raw watercress daily for eight weeks. Blood samples were analyzed for plasma antioxidant status and DNA damage in lymphocytes, a type of white blood cell. Watercress consumption significantly reduced lymphocyte DNA damage. In the time of the Romans, Greeks and Persians watercress was used as a natural medicine, prescribed for migraines, anemia, eczema, kidney and liver disorder and tuberculosis.    

So don’t' know what soup to cook for the family?  Make it watercress soup once a week at least ya! 



Further Reading from Wikipedia:

Health benefits and cancer defense



Watercress contains significant amounts of iron, calcium and folic acid, in addition to vitamins A and C. In some regions, watercress is regarded as a weed, in other regions as an aquatic vegetable or herb. Watercress crops grown in the presence of manure can be a haven for parasites such as the liver fluke Fasciola hepatica.


Many benefits from eating watercress are claimed, such as that it acts as a stimulant, a source of phytochemicals and antioxidants, a diuretic, an expectorant, and a digestive aid.



It also appears to have antiangiogenic cancer-suppressing properties; it is widely believed to help defend against lung cancer.



A 2010 study conducted by the University of Southampton found that consumption of watercress may also inhibit the growth of breast cancer. 


The PEITC content of watercress inhibits HIF, which can inhibit angiogenesis.



Due to its high iodine content, watercress has a strengthening effect on the thyroid gland, thus it is beneficial for sufferers of hypothyroidism.



In addition, watercress is a known inhibitor of the cytochrome P450 CYP2E1, which may result in altered drug metabolism for individuals on certain medications (e.g., chlorzoxazone).





Nutritional value per 100 g (3.5 oz) of Watercress (raw)


Energy                          11 kJ (2.6 kcal)

Carbohydrates              1.29 g

- Sugars                        0.20 g

- Dietary fibre                0.5 g

Protein                          2.30 g

Vitamin A equiv.            160 μg (20%)

- beta-carotene             1914 μg (18%)

- lutein and zeaxanthin   5767 μg

Folate (vit. B9)              9 μg (2%)

Vitamin C                     43.0 mg (52%)

Iron                              0.20 mg (2%)


Percentages are relative to US recommendations for adults.

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