Living on Light

In 1995 at the start of the ZetaTalk saga, the Zetas were asked about the assertion that man can live on sunlight. The Zetas stated this was a falsehood, a hoax to gain status and followers.

A falsehood promulgated by Yogis is that they nourish themselves not with the same food and water required by mere humans whom they would lead, but by the absorption of light energy, called Divine Nectar. This is a falsehood difficult for the follower to disprove, as to put in place the controls necessary to disprove the proposition, the follower would have to highly insult the master.

ZetaTalk: Devine Nectar, written July 15, 1995

In 2012 a report coming out of Austria documented that several people had died trying to follow this practice, having starved to death. 

Swiss Woman Dies after Attempting to live on Sunlight
April 25, 2012
http://www.nydailynews.com/life-style/health/swiss-women-dies-giving-water-food-thought-live-sunlight

Swiss newspaper Tages-Anzeiger reports that a woman starved to death after embarking on a spiritual diet that required her to stop eating or drinking and live off sunlight alone. The Zurich newspaper reported Wednesday that the unnamed Swiss woman in her fifties decided to follow the radical fast in 2010 after viewing an Austrian documentary about an Indian guru who claims to have lived this way for 70 years. Tages-Anzeiger says there have been similar cases of self-starvation in Germany, Britain and Australia. The prosecutors' office in the Swiss canton (state) of Aargau confirmed Wednesday that the woman died in January 2011 in the town of Wolfhalden in eastern Switzerland.