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Encyclopedia of Healing Foods Paperback – September 20, 2005
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About the Author
Dr. Michael T. Murray is the author of more than thirty books, including the acclaimed bestsellers The Encyclopedia of Natural Medicine (Third Edition) and The Encyclopedia of Healing Foods (co-authored with Dr. Joseph Pizzorno). He is regarded as the world authority on natural medicine and appears regularly in national media, including The Dr. Oz Show. An educator, lecturer, researcher, and health food industry consultant, Dr. Murray also constantly updates his health information portal: DoctorMurray.com.
Dr. Joseph Pizzorno is cofounder of Bastyr University, the first accredited multidisciplinary university of natural medicine in the United States.
Lara Pizzorno, M.A., L.M.T., is a health writer and medical editor with more than twenty years of experience.
Excerpt. © Reprinted by permission. All rights reserved.
Chapter One: Human Nutrition: An Evolutionary Perspective
In order to answer the question "What is a healthy diet?," it is important to first take a look at what our body is designed for. Is the human body designed to eat plant foods, animal foods, or both? Respectively, are we herbivores, carnivores, or omnivores?
While the human gastrointestinal tract is capable of digesting both plant and animal foods, there are indications that we evolved to digest primarily plant foods. Specifically, our teeth are composed of twenty molars, which are perfect for crushing and grinding plant foods, along with eight front incisors, which are well suited for biting into fruits and vegetables. Only our front four canine teeth are designed for meat eating, and our jaws swing both vertically to tear and laterally to crush, while carnivores' jaws swing only vertically. Additional evidence that supports the human body's preference for plant foods is the long length of the human intestinal tract. Carnivores typically have a short bowel, while herbivores have a bowel length proportionally comparable to humans'.
To answer the question of what humans should eat, many researchers look to other primates, such as chimpanzees, monkeys, and gorillas. These nonhuman wild primates are omnivores. They are also often described as herbivores and opportunistic carnivores in that although they eat mainly fruits and vegetables, they may also eat small animals, lizards, and eggs if given the opportunity. For example, the gorilla and the orangutan eat only 1 percent and 2 percent of animal foods as a percentage of total calories, respectively. The remainder of their diet is derived from plant foods. Since humans are between the weight of the gorilla and orangutan, it has been suggested that humans are designed to eat around 1.5 percent of their diet in the form of animal foods. However, most Americans derive well over 50 percent of their calories from animal foods.
Since wild primates fill up on wild fruit and other highly nutritious plant foods, those weighing one tenth the amount of a typical human ingest nearly ten times the level of vitamin C and much higher amounts of many other vitamins and minerals (see Table 1.1). How is this possible? One reason is that the cultivated fruit in an American supermarket is far different from the wild fruit of the primate's diet, having a slightly higher protein content and a higher content of certain essential vitamins and minerals. Cultivated fruit tends to be higher in sugars and, while very tasty to humans, it is not nearly as nutritious. In fact, it raises blood sugar levels much more quickly than its wild counterparts do.
There are other differences in the wild primate diet that are also important to highlight, such as a higher ratio of alpha-linolenic acid -- the essential omega-3 fatty acid -- to linoleic acid -- the essential omega-6 fatty acid. A higher ratio of omega-3 fatty acid decreases the likelihood of the development of inflammatory and chronic diseases as well as their severity. Finally, the wild primate diet is very high in fiber, while the average American diet is not. A high-fiber diet protects against heart disease and many types of cancer.
Determining what diet humans are best suited for may not be as simple as looking at the diet of wild primates. Humans have some significant structural and physiological differences compared to apes. The key difference may be our larger, more metabolically active brains. In fact, it has been theorized that a shift in dietary intake to more animal foods may have produced the stimulus for human brain growth. The shift itself was probably the result of limited food availability, which forced early humans to hunt grazing mammals such as antelope and gazelle. Archaeological data support this association -- humans' brains started to grow and become more developed at about the same time evidence shows an increase of animal bones being butchered with stone tools at early villages.
While improved dietary quality alone cannot fully explain why human brains grew, it definitely appears to have played a critical role. With their bigger brains, early humans were able to engage in more complex social behavior, which led to improved foraging and hunting tactics, which, in turn, led to even higher quality food intake that fostered additional brain evolution.
Data from anthropologists looking at evidence from hunter-gatherer cultures is providing much insight as to what humans are designed to eat. However, it is important to point out that these cultures were not entirely free to determine their diets. Instead, their diets were molded as a result of what was available to them. For example, the diet of the Inuit Eskimos is far different from that of the Australian Aborigines. Therefore, it may not be appropriate to answer the question "What should humans eat?" simply by looking at these studies alone.
Nonetheless, regardless of whether a hunter-gatherer community relied on animal or plant foods, the rate of diseases of civilization such as heart disease and cancers was extremely low.
How is this possible? One reason is that the meat our ancestors consumed was much different from the meat we find in the supermarket today. Domesticated animals have always had higher fat levels than their wild counterparts, but the desire for tender meat has driven the fat content of domesticated animals to 25 to 30 percent or higher compared to a fat content of less than 4 percent for free-living animals or wild game. In addition, the type of fat is considerably different. Domestic beef contains primarily saturated fats and virtually undetectable amounts of omega-3 fatty acids. In contrast, the fat of wild animals contains over five times more polyunsaturated fat per gram and has desirable amounts of beneficial omega-3 fatty acids (approximately 4 percent).
What conclusions can we draw from the evidence of the wild primate and hunter-gatherer diets about how we should eat today? Overwhelmingly, it appears that humans are better suited to a diet composed primarily of plant foods. This position is supported also by a tremendous amount of evidence showing that deviating from a predominantly plant-based diet is a major factor in the development of heart disease, cancer, strokes, arthritis, and many other chronic degenerative diseases. It is now the recommendation of many health and medical organizations that the human diet should focus primarily on plant-based foods, comprising vegetables, fruits, grains, legumes, nuts, and seeds.
The evidence supporting diet's role in chronic degenerative diseases is substantial. There are two basic facts linking the diet-disease connection:
1. A diet rich in plant foods is protective against many diseases that are extremely common in Western society.
2. A diet providing a low intake of plant foods is a causative factor in the development of these diseases and provides conditions under which other causative factors became more active.
The Pioneering Work of Denis Burkitt and Hugh Trowell
Much of the link between diet and chronic disease originated from the work of two medical pioneers: Denis Burkitt, M.D., and Hugh Trowell, M.D., editors of Western Diseases: Their Emergence and Prevention, first published in 1981. Although now extremely well recognized, the work of Burkitt and Trowell is actually a continuation of the landmark work of Weston A. Price, a dentist and author of Nutrition and Physical Degeneration. In the early 1900s, Dr. Price traveled the world observing changes in teeth and palate (orthodontic) structure as various cultures discarded traditional dietary practices in favor of a more "civilized" diet. Price was able to follow individuals as well as cultures over periods of twenty to forty years, and he carefully documented the onset of degenerative diseases as their diets changed.
Based on the extensive studies examining the rate of diseases in various populations (epidemiological data), including the groundbreaking work of Dr. Price and their own observations of primitive cultures, Burkitt and Trowell formulated the following sequence of events:
First stage: In cultures consuming a traditional diet consisting of whole, unprocessed foods, the rate of chronic diseases, such as heart disease, diabetes, and cancer is quite low.
Second stage: Commencing with eating a more "Western" diet, there is a sharp rise in the number of individuals with obesity and diabetes.
Third stage: As more and more people abandon their traditional diet, conditions that were once quite rare become extremely common.
Examples of these conditions include constipation, hemorrhoids, varicose veins, and appendicitis.
Fourth stage: Finally, with full Westernization of the diet, other chronic degenerative or potentially lethal diseases, including heart disease, cancer, osteoarthritis, rheumatoid arthritis, and gout, become extremely common.
Since the publication in Western Diseases of Burkitt and Trowell's pioneering research, a virtual landslide of data has continually verified the role of the Western diet as the key factor in virtually every chronic disease, but especially in obesity and diabetes. In 1984, the Food and Nutrition Board of the National Research Council established the Committee on Diet and Health to undertake a comprehensive analysis on diet and major chronic diseases. Their findings, as well as those of the U.S. surgeon general, the National Cancer Institute, and other highly respected medical groups brought to the forefront the need for Americans to change their eating habits to reduce their risk for chronic disease. Table 1.2 lists diseases with convincing links to a diet low in plant foods. Many of these now-common diseases were extremely rare before the twentieth century.
Trends in U.S. Food Consumption
During the twentieth century, food consumption patterns changed dramatically. Total dietary fat intake increased from 32 percent of calories in 1909 to 43 percent by the end of the century; carbohydrate intake dropped from 57 ... --This text refers to an out of print or unavailable edition of this title.
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Top Customer Reviews
1. The books is about "Foods", right? I looked up Persimmons because in my mind they mysteriously helped me feel better, I even slept better - they are available only in November -- Nothing in the Index.
2. I looked up "Digestion" in the INDEX and found Nothing. (Again, this is a book about Food.) However, as I flipped through the book I did find a nice section on Digestion.
3. I found Amazing insights on Green Teas (which I had thought was a fad, I don't enjoy it), and Gluten. I found fascinating information on certain essential oils, and how to store certain greens and fruits and herbs.
4. I looked up "Endives" -- is it a lettuce, a stalk-like veggie, a tuber? You won't see a drawing or photo of this veggie, but you WILL see outstanding nutritional information, and guidelines you need for eating it.
5. Is it true, as some doctor had said, that Broccoli and Cauliflower are not foods of Nature, but hybrids? NO it's not. Broccoli's been talked about for 2,000 years.
6. I was wondering, WHY does he have Herpes in here? There is a definite "Food Prescription" for Herpes Simplex.
7. AND FINALLY an explanation of "acidity/alkalinity" [CRITICAL to Health)!! As in, Why aren't Lemons High on the Acidity index??
8. I didn't see Hemp Oil.
9. Iron is fairly difficult to get. Selenium is VERY important (Two words: Brazil nuts). Fresh Oysters contain an astounding amount of Zinc.
10. Who knew this? "Cow's milk consumption was determined to be the cause of constipation in 2/3 of children (who had it) according to the prestigious NEJM." He leads you to prestigious studies, like Tufts, on Blueberries (fascinating). (Layer yogurt and blueberries in a wine glass he says.)
11. Wonderful section on EYES. Nothing on Eyebright tea, which works like magic. Cooks Country said the Frozen version of Yogurt kills, what, 95% of the 'biotics', so, what ABOUT Frozen foods and nutrients?
12. That crap underneath certain mushrooms - people eat that, or is it Rot?? What’s the deal about not washing Mushrooms? Otherwise, a fantastic section on Mushrooms. The info on Maitake Mushrooms was Astounding!
13. Info on "Sea Vegetables" - loved it. They date back to Japan -- 8,000 BCE!!
14. What about “baby” veggies? Chef Pepin doesn’t really recommend these. They "tend to be bitter and obviously not biologically mature".
15. Who knew that some foods are poison, like the pits of fruits? I actually found this out by watching a PBS show about a garden of death, so-to-speak in honor of Agatha Christie.
16. Two more words: ASIAN GREENS! Nothing (that I've found) in the book about these amazing Greens available at many Farmer's Markets and Asian Markets.
17. Interesting how he has a section on herbs that's begging to be laminated and kept on the refrigerator -- however he left out the homely Bay Leaf which seems to be very versatile ("Gripe Water")
If you, like me, believe that Food is Your Best Medicine, this is a book worth its weight in Gold.
Addendum: So now we have, as reported by NBC, a "Culinary Medicine Program" at Tulane University where Doctors learn Cooking. And this program is being copied by 19 other universities.
Most Recent Customer Reviews
It is written very understandably.