of course a pc crash lost that bookmark and I can't find it just now :( anyhoo some scientist theorized that we don't just live on carbs, fats, vitamins etc but we absorb the biophotons in food as well....
oh goody wikipedia saves the day -
http://en.wikipedia.org/wiki/BiophotonIn the 1970s the then assistant professor Fritz-Albert Popp, and his research group, at the University of Marburg (Germany)showed that the spectral distribution of the emission fell over a wide range of wavelengths, from 200 to 800 nm. Popp proposed that the radiation might be both semi-periodic and coherent. This hypothesis has not won general acceptance among scientists who have studied the evidence. Popp's group, however, constructed, tested, patented, and sought to market a device for measuring biophoton emissions as a means of assessing the ripeness and general food value of fruits and vegetables.
Russian, German, and other biophotonics experts, often adopting the term "biophotons" from Popp, have theorized, like Gurwitsch, that they may be involved in various cell functions, such as mitosis, or even that they may be produced and detected by the DNA in the cell nucleus. In 1974 Dr. V.P.Kazmacheyev announced that his research team in Novosibirsk had detected intercellular communication by means of these rays.<8>