I can't recall the name of this book, but I can remember some details about it: I believe it was released around 2003, ±1 year. (I remember the year because in that year another book came out, In His Image of the Christ Clone Trilogy.) Also this book is part of a series (at least a trilogy), I am sure it's not the first book in the series.
Anyway, in this book there are 6 main characters.
Of the 6, 5 of them have special abilities. And of them, I can remember the abilities of 2 characters.
First there is a girl who can control/transfer metabolism between people. That means that with her power she can eat all she wants and transfer the fat to people around her. (Sorry if that doesn't make sense.)
Secondly, about the main main character of the 5 (a dude), I think he has the power to not die. I.e. he'll always revive no matter what happens to him. And what makes him special (hence the main character) is that when all 5 power users are together, his power gets upgraded, in that he can revive dead people.
The last main character I can remember is not a power user. Instead he is a rich Jewish dude, whose master plan was to build these huge apartment complexes in the Middle East area. And then have the main main character revive all the Jews that were killed during the holocaust, and those revived Jews would live in these apartment complexes.
Lastly I believe that the power user got their powers from some alien dude.