Some great info here and well supplemented with encouraging Scripture BUT this is so extreme, that it is not fully a go for me. No more than two cups of coffee or tea a day? No brewed, unsweetened, decaf iced tea (my go-to)? Ugh.
I do restrict myself from eating many unhealthy things--I don't even drink alcohol or eat dessert--but the whole idea of getting rid of decaf unsweet tea is a bridge too far--I have never had a doctor or nutritionist tell me it had to go either.
Deep breath...I can take some of what this book advises, but cannot cross the suggested Rubicon fully. God wants us to be happy, healthy, and enjoy a bountiful life--not sure we can do that by restricting ourselves to a diet of cardboard and water. Just saying.