It's an oft-repeated truth that fresh
fruits and vegetables start losing nutrients the moment they are
picked. But it's shocking to learn just how fast those vitamins fade.
According to the USDA, up to half of the nutritional value may be lost
in just two days of room temperature storage. http://blog.nutritiondata.com/ndblog/2010/03/fresh-vegetables-think-again.html?mbid=ndnl