True enough, you won't find any references to showering in the Bible, but there are plenty of references to bathing, both daily and ceremonial. As for excercise, if you had to plant, tend, harvest and hunt all your food as well as grind the grain and stomp the grapes yourself, shear the sheep and then card, spin and weave the wool into cloth for clothing, then walk pretty much everywhere you went on top of working hard all day, I think most of us wouldn't have much of a weight problem.
Still..there are also references to obesity in the Bible despite the dietary restictions of Deuteronomy. It is recorded that Eli the priest had grown so heavy that after hearing bad news regarding the death of his sons and the Ark of the Covenent, falling backwards in his chair caused him to break his neck. 1 Samuel 4:18. "...and he died for he had grown old and heavy."
Granted, he was 97 at the time, but being overweight was not unknown among the Israelites even if it was fairly uncommon. I don't think it was so much what they ate as the fact that they led very strenous, physically demanding lives. :rolleyes:

Actually, his book is NOT God's diet.

If you get past the old testament into the new testament, you read that all foods are now permissible, and the old law (of the old testament) regarding foods need not be followed.

Unfortunately, I don't have a bible in front of me, but I believe it was even Jesus who said this. Thus, I find it ironic that the author of this book, a messianic Jew (a Jew who believes in Jesus of the new testament), feels compelled to preach teachings of the old testament, where certain foods were considered at the very best undesirable, and at the very worst, just plain not allowed!

The new testament abolished the old law and every food was now permissible.

Hopefully, since jogging is out, the good man also prescribes the traditional means of heating (going out into the woods, hacking down trees or collecting LOTS of sticks, chopping it up, starting a fire), transportation (animals, which you have to brush, clean, feed), cooking (including grinding grains by hand), washing clothes (by hand, in cold water, with a lot of rubbing)? Your imagination to go on about house cleaning, dish washing etc. etc.