On The Edge

found this on another site and had to post it here for all my NBS Brothern

Happy 4th everyone

Just make sure to eat the rinds!



Watermelon May Have Viagra-Like Effect
By BETSY BLANEY,AP

LUBBOCK, Texas (July 2) - A slice of cool, fresh watermelon is a juicy way to top off a Fourth of July cookout and one that researchers say could keep fireworks going long into the night.

Watermelons contain an ingredient called citrulline that can trigger production of a compound that helps relax the body's blood vessels, similar to what happens when a man takes Viagra, said scientists in Texas, one of the nation's top producers of the seedless variety.

Found in the flesh and rind of watermelons, citrulline reacts with the body's enzymes when consumed and is changed into arginine, an amino acid that benefits the heart, and the circulatory and immune systems.

"Arginine boosts nitric oxide, which relaxes blood vessels, the same basic effect that Viagra has, to treat erectile dysfunction and maybe even prevent it," said Bhimu Patil, a researcher and director of Texas A&M's Fruit and Vegetable Improvement Center. "Watermelon may not be as organ specific as Viagra, but it's a great way to relax blood vessels without any drug side-effects."

The nitric oxide also can help with angina, high blood pressure and other cardiovascular problems, according to Patil.

More citrulline - about 60 percent - is found in watermelon rind than the flesh, Patil said, but that can vary. But scientists may be able to find ways to boost the concentrations in the flesh, he said.

Citrulline is found in all colors of watermelon and is highest in the yellow fleshed types, said Penelope Perkins-Veazie, a U.S. Department of Agriculture researcher in Lane, Okla.

Patil's research is valid but with a caveat, she said.

One would need to eat about six cups of watermelon to get enough citrulline to boost the body's arginine level, she said.

"The problem you have when you eat a lot of watermelon is you tend to run to the bathroom more," Perkins-Veazie said.

Watermelon is a diuretic and was a homeopathic treatment for kidney patients before dialysis became widespread.

Another issue is the amount of sugar that much watermelon would spill into the bloodstream - a jolt that can sometimes cause cramping, Perkins-Veazie said.

Patil said he would like to do future studies on how to reduce the sugar content in watermelon.

Todd Wehner, who studies watermelon breeding at North Carolina State University, said anyone taking Viagra shouldn't expect the same result from watermelon.

"It sounds like it would be an effect that would be interesting but not a substitute for any medical treatment," Wehner said.

The relationship between citrulline and arginine also may prove helpful to those who are obese or suffer from type-2 diabetes. The beneficial effects - among them the ability to relax blood vessels, much like Viagra does - are beginning to be revealed in research.

Citrulline is present in other curcubits, like cucumbers and cantaloupe, but at very low levels, and in the milk protein casein. The highest concentrations of citrulline are found in walnut seedlings, Perkins-Veazie said.

"But they're bitter and most people don't want to eat them," she said.

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