C.A.Harday, a reviewer below, got a little carried away in her negative review of this book, but I agree with her basic criticism. This is a Christian book with Bible citations throughout. I stopped reading when I realized the author's obvious bias. When I'm looking for information on immune system health, I'm not looking for highly-biased presentations on religion. My bias isn't against Christianity per se, it's including Christianity without fully disclosing that personal bias nor making a connection between that personal bias and the supposed educational material of the book. The author needs to be more open and honest, or she needs to leave her personal religion out of her desire to "educate" about health. She quickly burned her credibility with me.A better book is 4 Weeks to Maximum Immunity: Disease-Proof Your Body by the editors of Prevention Magazine (2008)