A German scientist, who has claimed that he has not eaten anything for four years, has claimed that he has survived by the energy generated from sunlight, besides water mixed with fruit juice.
A cancer researcher, Dr Werner has written a book called "Living through the Energy of Light", wherein he attributes his success to faith.
According to Fox News, German scientists investigating the source of Dr Werner's energy, say that they are not able to figure out how he has managed to stay healthy.
"It is not possible to live on what one gets from fruit juice alone. There are lots of vital proteins and fats that are missing. Obviously this case needs a lot more investigating if we are to explain it, "the report quoted Dr Helmut Oberritter, head of the German society for nutrition, as saying.