I know you want to give these New Agers the benifit of the doubt and everything, but there just haven't been any verified cases of this occurrence to date. Of course there haven't. Consider this simple syllogism: 

 P1. All animals require food. 
 P2. Humans are animals. 
 C. Humans require food. 

 That's obvious. Breatharianism is not only bullshit, it is dangerous bullshit. People have been hurt, and some have died, and it would be irresponsible of us to present it any different.