I was not impressed. The good advise is common sense: eat fruit and veg, get regular exercise, take supplements etc. The scriptural quotes are fine. But the factual errors and ideas about daily life undermine what was good.
Take vitamins at every meal, plus enzymes, plus probiotics. Every day have a green drink, take cod liver oil etc. etc. Impractical, expensive and unnecessary.
Some things are clearly stated as his opinion but some are inaccurate and occasionally contradictory. Only eat fish with fins and scales. Fine. That would include catfish - they have fins and scales but you can't eat pigs because they are "unclean". Catfish are bottom feeders - that would be "unclean".
The sun doesn't cause sun cancer because years ago people got(on average) more sun then the average person does today but didn't get skin cancer. First of all, we don't have statistics so we don't know if that is true. Secondly, he does not address the increased strength of the sun rays due to the decrease in the ozone layer. No, he just wants you to get a lot of sun. Much safer to take Vit.
D and wear your sunscreen.
Drink more water. Great. He advocates bottled water totally ignoring that most of it is filtered tap water (which you can do cheaper at home) and ignores the ecological disaster the production of plastic bottles and their disposal causes.
You get the idea. I wouldn't recommend this book - not worth the time.
Oh- and a cow does not have 4 udders. I has one udder and four teats.