A condensed version of Dr. Howell’s lifelong research, this book provides the biochemical basis for why all foods, to be properly utilized as nutrients, must be consumed in an unheated state. When we are young, says Dr. Howell, our normal ability to produce enzymes internally promotes rapid growth, and in most cases prevents serious illness. But as we age, our internal enzymes become depleted. Unless we do something to stop their one-way flow out of the body, our digestive and eliminative capacities weaken. This can lead to acute health complaints, obesity, and chronic illness. If an individual chooses to consume cooked food, this book is a must to understand why enzymatic supplementation is required.