Citrulline is more concentrated in the rind than in the flesh of the fruit. So, of course, researchers are diligently working on developing a variety with rind-quality concentrations in the flesh of the fruit. I’ve not yet seen evidence of the Viagra fruit on the market, but there is no doubt that it is coming soon to a test tube near you.
 
Previous to the citrulline discovery, watermelon was valued as one of the finest natural sources of lycopene available – it even outweighs tomatoes on the lycopene department! (Lycopene is primarily thought of as essential for heart health but is also beneficial for prostate health).
 
Yet without knowing the nutritional impact it can have on the body, it is still easy to see why watermelon is a food of seduction. Valentine pink in color, watermelon’s flesh is an emblem of summer, hot days in the sun and lots of skin.
 
Even in the manner in which it is eaten, watermelon is sexy.  It is a food for which it is not only accepted, it is expected that the seeds will be expelled from the mouth through puckered up lips.

It could be suggested that impromptu watermelon seed spitting contest may be excellent ice breakers for singles on the prowl at the softball league summer BBQ. Think about it... an entire game focused solely on the skills of mouths.