A slice of cool, fresh watermelon is a juicy way to top off a Fourth of July cookout and one that researchers say has effects similar to Viagra - but don't necessarily expect it to keep the fireworks all night long. 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 in large quantities and is changed into arginine, an amino acid that benefits the heart and the circulatory and immune systems. The problem is, you probably have to eat about five giant watermelons to have the same effect as one tablet of Viagra. Having all that mush inside you, might just inhibit your sexual prowess.
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That's good for about thirty minutes!
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