Dien,
Thanks for mentioning Calorie Restriction.
One so-called Longevity Guru goes by the name of Elixxir and you can see his website here
http://www.immortalism.com
Last time I looked he didn't say What his program was. But my research reveals it is Calorie Restriction. Of course, if you feel you want to pay him $1,500 to have dinner with him, $5,000 to spend a day with him, $9,900 for a weekend, $70k for 8 weeks or $1,000,000.00 for a year with him, then Hook In.

) - Or buy his book for $13.
Michael Ross