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Why We Need Animal Fats for Health and Happiness
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In the style of her beloved cult classics Nourishing Traditions and Nourishing Broth, Nourishing Fats supports and expands upon the growing scientific consensus that a diet rich in good fats is the key to optimum health, and the basis of a sustainable, long-term diet. Sally has been giving the clarion call for these facts for many years and now the American public is finally is catching up.
In Nourishing Fats Sally shows readers why animal fats are vital for fighting infertility, depression, and chronic disease, and offers easy solutions for adding these essential fats back into readers’ diets. Get excited about adding egg yolks and butter back into your breakfast, because fat is here to stay!
Lately there's been a growing chorus of voices challenging the conventional wisdom on dietary fat. Long-standing ideas have been upended—about which fats are bad and which are good, as well as the general notion that fat overall is a major driver of chronic disease. A large number of rigorous studies now show that you can eat plenty of fat and be slim and healthy—or healthier, even. Indeed, in 2015, after thirty-five years of recommending the low-fat diet to Americans, the U.S. government decided to lift its caps on total fat, albeit in such a quiet and confusing way that the public seems hardly to know.
People are even less aware of the origins of this shift—what we might call the Great Fat Reconsideration. With the recent proliferation of bloggers and book writers riding a wave of burgeoning enthusiasm about the surprising virtues of butter, eggs, whole milk, and so on, most people don't realize that many of these ideas trace directly back to the Weston A. Price Foundation, and especially to the work of Sally Fallon Morell together with her late, close colleague Mary G. Enig, PhD.
The partnership between Fallon Morell and Dr. Enig was a central force in propelling forward the rethinking of fats over the last twenty years. In 2006, for instance, they co-authored Eat Fat, Lose Fat, which detailed how higher-fat diets helped people maintain good health. This idea dates back a century at least, but its current renaissance has only unfolded over the past five years or so, putting these two women squarely ahead of the curve.
Taking on the scientific orthodoxy like this was second nature to Dr. Enig, who occupied a singular space in the academic world of "lipidology" (fats). A leading expert who published in academic journals, she simply lacked the fear not to challenge the prevailing dogma. For this she weathered a storm of criticism from her all-male colleagues who called her "nutso" and a "zealot," yet Dr. Enig fiercely stood her ground.
In the 1970s, she was one of the earliest researchers to signal the alarm about the dangers of trans fats—it took mainstream scientists another two decades to catch up—and also she spoke out, more generally, about the politics and health problems of vegetable oils. It was Dr. Enig, in fact, who lured me into studying this subject. With her seemingly unbelievable stories about how executives from the vegetable oil industry had repeatedly tried to shut down her work, I knew that Dr. Enig, hardly a kook, was truly a pioneer.
Fallon Morell, meanwhile, skillfully fused the science—Dr. Enig's charts of carbon-chain atoms and carboxyl groups—with the larger cultural and historical context. Put another way, she performed the crucial job of translating nutrition into food. She did this, in part, by writing Nourishing Traditions, a best-selling cookbook that combined recipes derived from ancient traditions, along with riveting, surprising stories about the origins of those traditions. Yes, ancient peoples prized organ meats above all other cuts and let bacteria run amok in their dairy products. For the average American, these were mind-bending revelations.
In this way, Sally Fallon Morell has carried forward the work of Dr. Price, the dentist whose stunning photos of healthy "primitive" peoples, along with accounts of their diets, provides a historical, anthropological record of how humans ate before the onset of chronic diseases. Modern nutrition science ignores all this history at its peril—which is why her work in preserving and furthering this crucial knowledge is such a profound contribution to the many researchers and laypeople now trying to rediscover our lost food culture.
Another important part of Dr. Price's legacy that Fallon Morell has skillfully charted into present day is a focus on nutrients, especially those needed for women and children. Nutrition scientists in the 1920s and '30s used to ask the question, so crucial to any animal, namely, what is the best diet for promoting healthy growth and reproduction? What must a pregnant woman eat to ensure a healthy baby and then feed that baby to ensure its healthy development? Attention to these issues vanished in the 1950s, when nutrition scientists swung around to focus instead on the growing epidemic of heart disease, which afflicted middle-aged men. The needs of women and children were thus subsumed to those of men. And this remains true today—such that the U.S. government's recommended diets are actually deficient in quite a few key nutrients, and consequently, lunches fed to our children in schools cannot support healthy growth, according to the government's own standards. Getting information about how to provide adequate nutrition to children is now nigh-well impossible.
Except for the Weston A. Price Foundation. Through the work of Fallon Morell, this group has become a beacon for parents in the United States and throughout the world on how to buy and cook food that will result in truly healthy children. Hopefully this focus on nutrients will catch on among the new crop of leaders embracing higher-fat diets. Thus far, however, it's been the the singular, brave work of Sally Fallon Morell and her foundation that has kept this vitally important information alive. Through her, so many women, including myself, have learned how to bring up healthy children, and for that, she rightly deserves a medal.
Now Sally Fallon Morell has written a new book, focusing on different kinds of dietary fats. Full of fascinating stories as well as the underlying science, the book carries on the spirit of her partnership with Dr. Enig. It also explains how fats play an interlocking role with crucial nutrients. In short, it combines the many strands of Fallon Morell's work to date. Plus, some of her excellent recipes.
Author of New York Times bestseller The Big Fat Surprise
The Greatest Villains
In 1911, William Procter and James Gamble, makers of soap and candles, introduced a revolutionary new product. They called their product Crisco.
Crisco's main ingredient was—and still is—cottonseed oil,* but cottonseed oil subjected to a special process to make it hard at room temperature. Developed by Procter and Gamble with the help of German chemist E. C. Kayser, the process of partial hydrogenation rearranges the hydrogen atoms in fat molecules. The resulting fat—now bleached, emulsified and deodorized—resembled lard.
P&G initially used this new industrially hardened fat to replace expensive lard and tallow in their candles and soap. But electricity had arrived, the market for candles fell precipitously, and the company needed new markets. Since the new product resembled lard, why not sell it as a food?
Marketing began in 1912. An ad appearing in the February 1912 Home Directory stressed the product's "vegetable" origin: "Great interest centers in the effort to establish the correct proportion of vegetable and animal products in the daily diet. Every important test made lately has confirmed the popular idea that all other things being equal, a vegetable product is more desirable than an animal one, and there can be no question of the desirability of replacing a greasy animal fat with a flaky vegetable product." The copy urged housewives to use Crisco for frying, as shortening, and for "general cooking" and praised its clean, fresh odor. "Better than Butter for Cooking," it promised. Readers learned that "Crisco is being placed in the grocery stores as rapidly as possible."
Procter & Gamble's next step was pure marketing genius—they published and gave away a cookbook touting the joys of cooking with their new magic fat. The Story of Crisco featured two hundred fifty recipes, everything from lobster bisque to pound cake, all made with Crisco.
The Story of Crisco's long introduction mixes pseudoscience with subtle persuasion. Considered a classic in marketing strategy, its language appealed to housewives of the emerging middle class, eager for modernization.1 The cookbook presents Crisco as healthier, more digestible, cleaner, more economical, more enlightened and more modern than lard; it portrays women who use Crisco as good wives and mothers, their houses are free of strong cooking odors and—every mother's dream—their children grow up with good character.* "Domestic scientists," employed by Procter & Gamble, taught the use of Crisco at cooking schools and at free demonstrations held in theaters and public facilities. One specific target: high school girls enrolled in home economics classes.
P&G also had the brilliant idea of presenting Crisco to the Jewish housewife as a kosher food, one that behaved like butter but could be used with meats. Because it made kosher cooking easier, Jews adopted Crisco and margarine—imitation lard and imitation butter—more quickly than other groups, with unforeseen consequences.
Procter & Gamble's strategy was obvious: demonize the competition, but do it in a way that would appeal to the thrifty turn-of-the century housewife, eager to be modern and clean.†
Crisco was not the first manufactured fat presented as suitable for human consumption. In 1869, Emperor Napoleon III of France offered a prize to anyone who could make a satisfactory alternative for butter, "suitable for use by the armed forces and the lower classes." French chemist Hippolyte Mège-Mouriès invented a substance he called oleomargarine, later shortened to "margarine." The principal raw material in the original formulation was beef fat, but in 1871, Henry W. Bradley of Binghamton, New York, patented a process for creating margarine that combined vegetable oils (primarily cottonseed oil) with animal fats. With cheaper ingredients, the margarine business promised great profits.
In Life on the Mississippi, published in 1883, Mark Twain recalls a conversation he overhears between a New Orleans cottonseed oil purveyor and a Cincinnati margarine drummer. New Orleans boasts of selling deodorized cottonseed oil as olive oil in bottles with European labels. "We turn out the whole thing—clean from the word go—in our factory in New Orleans… We are doing a ripping trade, too." Cincinnati reports that his factories are turning out oleomargarine by the thousands of tons, an imitation that "you can't tell from butter." He gloats at the thought of market domination. "You are going to see the day, pretty soon, when you won't find an ounce of butter to bless yourself with, in any hotel in the Mississippi and Ohio Valleys, outside of the biggest cities… And we can sell it so dirt cheap that the whole country has got to take it… butter don't stand any show—there ain't any chance for competition. Butter's had its day—and from this out, butter goes to the wall. There's more money in oleomargarine than—why, you can't imagine the business we do."2
Early ads for margarine had little copy and made no claims; instead, pictures of healthy babies and pretty girls conveyed wholesome goodness. The best they could do was imply equivalence at a lower price. And there was much resistance. People still preferred butter—in part because they could make it in their kitchens. Butter consumption in 1900 was about eighteen pounds per person per year,3 or about five teaspoons per day, and probably a lot higher among farm families. Early visitors to America, such as de Tocqueville, noted that Americans were a butter-eating nation, that they put butter in or on everything including soups, sauces, meat, vegetables, porridge and puddings.4 Early cookbooks included recipes for salad dressing based on melted butter.5 People cooked in lard, bacon fat and beef dripping because that was what they had.
In the early 1900s, the chief medical concern was poor health in children—infectious disease, rickets, anemia and growth problems—problems rightly attributed to poor nutrition. On the basis of research carried out in the 1920s and 1930s, the British Medical Association recommended that all British people consume 80 percent more milk, 55 percent more eggs, 40 percent more butter and 30 percent more meat. The British government introduced free school milk—that would be full-fat milk—and encouraged the consumption of more animal foods, especially eggs.
Following this policy, childhood deaths from diphtheria, measles, scarlet fever and whooping cough fell dramatically—well before the advent of antibiotics and vaccinations. Rickets and other childhood afflictions became rare. These recommendations continued into the Second World War, when all British children received a ration of eggs, cod liver oil and orange juice. During these years, the life expectancy in England climbed to sixty years in 1930 and seventy years in 1960.6
In America as well, most American doctors recognized the value of milk, eggs, butter, liver, cod liver oil and meat in the diet. Doctors told mothers to prepare liver once a week in order to prevent anemia, and housewives judged the quality of milk by the amount of cream it contained. The American and His Food, published in 1940, listed milk, cheese, eggs, liver, fatty fish, green vegetables, raw fruits, butter and cod liver oil as "highly protective foods" and legumes, cereals, bread, nuts, sugar, jam, honey, margarine, olive oil and other vegetable oils as "nonprotective foods."7
The Story of Crisco notwithstanding, advertisers found it difficult to make claims based on science or health benefits in this climate of common sense. They relied on price as the deciding factor. And then an innocent molecule called cholesterol entered the public consciousness. Cholesterol conveniently occurs only in animal foods, especially in saturated animal fats like lard and butter.
THE THEORY THAT CHOLESTEROL CAUSES heart disease dates from 1779 when Caleb Parry, an English physician, published his discovery that obstructed coronary arteries caused angina pectoris or chest pain.8 In 1910 the German chemist Adolf Windaus reported that these lesions contained six times as much cholesterol as a normal arterial wall.9*
In 1912, just as Crisco was coming to market, Nikolai N. Anichkov, a Russian scientist, induced atherosclerosis—obstructions in the arteries—by feeding foods like egg yolks and purified cholesterol to vegetarian rabbits. One year later he announced the discovery that cholesterol was "the primary factor" in initiating atherosclerosis.10 (One minor detail: Anichkov fed his rabbits cholesterol dissolved in vegetable oil, not saturated animal fats. Subsequently researchers routinely used vegetable oils as a base for cholesterol to induce atherosclerosis in animals.11)
But the fabulous marketing opportunity that awaited the makers of margarine, shortening and industrial vegetable oils did not materialize until after the Second World War. In the 1950s, a new health problem emerged—not rickets or other obvious manifestations of malnutrition—but heart disease, especially sudden death from myocardial infarction or heart attack.
While turn-of-the-century mortality statistics are unreliable, they consistently indicate the fact that heart disease caused no more than 10 percent of all deaths, considerably less than infectious diseases such as pneumonia and tuberculosis. Heart disease in 1900 usually manifested as gradual heart failure after a serious case of typhoid fever, not as sudden death by heart attack. The first recorded U.S. case of myocardial infarction (MI)—the scientific term for heart attack—occurred in 192012; three thousand deaths from MI occurred in 1930. By 1960, coronary heart disease (CHD) was the leading source of mortality in the United States, causing more than three hundred thousand deaths annually. The greatest increase came under the rubric of myocardial infarction.13 What was causing this new epidemic?*
In 1950 an American doctor, John Gofman, later known for his work on the dangers of x-rays and atomic radiation, resurrected the hypothesis that blood cholesterol was to blame. He noted, "For reasons still unknown, coronary heart disease suddenly took off during the 1920s throughout the industrialised world. By the 1940s it was becoming the major cause of premature death. And nobody knew why."14
Nobody knew why, but it was easy to theorize. One explanation was the decrease in infectious disease following the decline of the horse as a means of transport and the removal of horse manure from city streets, the installation of more sanitary water supplies, and the advent of better housing. These measures allowed more people to live to adulthood and thus made them more likely to experience a heart attack.
The other theory focused on a dietary change. Since the early part of the century, when the Department of Agriculture began tracking food "disappearance" data—or the amount of various foods going into the food supply—a number of researchers had noticed a change in the kind of fats Americans were eating. Butter consumption was declining while the use of vegetable oils, especially oils hardened to resemble butter or lard, was increasing—dramatically increasing. By 1950 butter consumption had dropped from eighteen pounds per person per year to just over ten. Margarine filled in the gap, rising from about two pounds per person at the turn of the century to about eight. Lard consumption plummeted from fifteen pounds per person per year to about three. Consumption of vegetable shortening—used in the home and in crackers and baked goods—remained relatively steady at about twelve pounds per person per year (up from zero in 1912), but consumption of liquid vegetable oil more than tripled—from just under three pounds per person per year to more than ten.15 Sugar consumption was up as well, from less than ten pounds per year in 1820 to almost eighty pounds in 1950.16 The statistics pointed to one obvious conclusion—to combat the rise in heart attacks, Americans should return to eating the traditional foods that nourished their ancestors, including meat, eggs, butter and cheese, and avoid the newfangled foods based on industrial oils (and sugar) that were flooding the grocers' shelves.
Even as the evidence pointed to the dietary shift toward oils and sugar as a cause, researchers continued to align themselves behind the idea that cholesterol was to blame for the epidemic. In 1954 a young researcher from Russia named David Kritchevsky repeated Anichkov's rabbit experiment. Kritchevsky agreed with the original findings: cholesterol added to vegetarian rabbit chow caused the formation of atheromas. In the same year, Kritchevsky published a paper describing the beneficial effects of cholesterol-free polyunsaturated fatty acids—found in liquid vegetable oils—for lowering cholesterol.17
Another early researcher was Dr. Edward H. Ahrens. For decades, Ahrens conducted research on blood cholesterol levels to determine whether a dietary change could prevent atherosclerosis. His research showed that the substitution of liquid vegetable oils for solid animal fats could reduce levels of the villainous cholesterol molecule, at least for the duration of short-term human experiments. The discovery did not show that liquid oils could lower the rate of heart disease, but many used it as justification for urging a switch from saturated animal fats to liquid polyunsaturated oils.*
Much credit for popularizing the cholesterol theory of heart disease goes to the persuasive and strong-willed Ancel Keys, a University of Minnesota researcher. His various epidemiological studies made him the most famous scientist in the nutrition world as he championed the idea that saturated fats raise cholesterol and therefore cause heart attacks. It was Keys, more than any other, who promoted the idea of the Mediterranean diet as low in fat and cholesterol, and rich in vegetables and beans. These conclusions came from dietary surveys carried out in Italy, Greece and middle Europe in the early 1950s, when these populations were still recovering from the wartime shortages—and they were carried out during Lent!18 The idea that the Italian diet—rich in cured pork products, cheese and meat—is low in saturated fat contradicts all the evidence. Keys fancied himself a gourmet but does not seem to have enjoyed linguine Alfredo or pepperoni pizza during frequent sojourns in Italy.†
Another member of this rogue's gallery was Jeremiah Stamler, MD, the doctor credited with introducing the term "risk factors" into the field of cardiology. Listed as an author on over four hundred papers, starting in 1948 with a study entitled, "The effect of a low fat diet on the spontaneously occurring arteriosclerosis of the chicken,"19 and continuing to 2015, Stamler insists even today that dietary cholesterol raises serum cholesterol, a premise that has faded with overwhelming findings to the contrary. Even during the heyday of cholesterol research, Stamler was highly selective in the studies he cited to justify his assertions. In a 1988 paper Stamler maintained that dietary cholesterol "has a substantial impact on blood cholesterol." As proof, he cited seven studies, and ignored many others. Two of these were irrelevant liquid diet studies and the remaining five indicated trivial effects of dietary cholesterol.20 When the International Atherosclerosis Project found no relationship between diet and degree of arterial obstruction or proneness to heart disease, he continued to insist that "a highly significant correlation was found between intake of fat and severe atherosclerosis at autopsy."21 In 1963, sponsored by Mazola Corn Oil and Mazola Margarine, Stamler coauthored a booklet called Your Heart Has Nine Lives, urging people to substitute vegetable oils for butter and other "artery-clogging" saturated fats.22
Dr. Frederick Stare, head of Harvard University's Nutrition Department for over forty years, added to the confusion surrounding cholesterol and saturated fat. He wrote a popular syndicated column that promoted the consumption of polyunsaturated oils and urged readers to reduce consumption of saturated fat and dietary cholesterol by avoiding eggs, meat and butter. In one 1969 column he stated, "To my knowledge, I've never heard of too much polyunsaturated fat for man."
He knew how to play fast and loose with the science: in a promotional piece specifically for Procter & Gamble's Puritan Oil, he cited two experiment and one clinical trial as showing that high blood cholesterol is associated with coronary heart disease (CHD).23 However, neither experiments had anything to do with CHD, and the clinical trial did not find that reducing blood cholesterol had any effect on CHD events. Nor was he bothered by any conscience for consistency. In 1986, he published a letter to the editor in FDA Consumer claiming, "far too much emphasis to the hazards of saturated fat and dietary cholesterol and not enough to the hazard of too many calories is given by the magazine." In a 1989 letter to the editor of the Journal of the American Medical Association he asserted that "The [blood] cholesterol factor is of minor importance as a risk factor in cardiovascular disease."*24
Irving Page served as president of the American Heart Association (1956–57) and in 1961 coauthored—with Ancel Keys, Jeremiah Stamler and Frederick Stare—the American Heart Association's revised dietary guidelines. The new guidelines recommended that Americans reduce the consumption of total fats and cholesterol and increase the amount of polyunsaturated fats, this despite the fact that Page and Stare had previously published papers showing that the increase in coronary heart disease mirrored the rise in consumption of vegetable oils.25 Only a few years earlier, Keys had proposed the theory that the increasing use of hydrogenated vegetable oils might actually be the underlying cause of heart disease.26
The 1968 AHA statement went further and quantified just how much fat and cholesterol people should be eating, with recommendations to limit cholesterol to 300 milligrams per day (typical diets contain 600–800 milligrams per day) and total fat to 30–35 percent of calories, comprised equally of saturated, polyunsaturated and monounsaturated fatty acids (typical diets contain 40–80 percent of calories as fat). These recommendations remain even to the present, enshrined in the USDA Dietary Guidelines.
It was these early researchers who formulated the "diet-heart theory" (that dietary choices can affect cholesterol levels in the blood) and the "lipid hypothesis" (that blood cholesterol levels determine proneness to heart disease). The appeal to the industrial oil industry was obvious—seed oils, as opposed to animal fats like butter, tallow and lard—contain no cholesterol and very little saturated fat. If feeding polyunsaturated oils from vegetable sources lowered serum cholesterol in humans, at least temporarily, and feeding vegetarian animals cholesterol caused plaque buildup in their arteries—oils were the clear solution! Using this shaky science, researchers put forward the idea that Americans could avoid heart disease by reducing animal products in their diet and lowering their cholesterol by substituting polyunsaturated oils. And this line of argument just happened to prove a boon to those who produced products that could substitute for butter, cream, eggs and lard.
Procter & Gamble was the first in the industry to capitalize on this opportunity brought forth by this new theory of heart disease prevention. In 1948, P&G made the American Heart Association (AHA) the beneficiary of their popular "Walking Man" radio contest, which the company sponsored. The show raised almost two million dollars for the organization and transformed it (according to the AHA's official history) from a small, underfunded professional society into the powerhouse it remains today.27 Originally founded in 1924 to study the effects of diseases like rheumatic fever on the heart, the organization morphed into the most influential advocate for a diet low in cholesterol and saturated fat. Their advice, even today, is unwaveringly fat-phobic: avoid butter, cream, ice cream, egg yolks and whole milk in favor of industrial seed oils, soft margarines, skinless chicken breasts, lean meat, egg whites and low-fat salad dressings.28 The AHA remains the main force in the war on animal fats—with no concern about the consequences.
IN THE YEARS THAT FOLLOWED, a number of population studies demonstrated that the animal model—especially one derived from vegetarian animals like rabbits—was not a valid approach for studying the problem of heart disease in human omnivores. As early as 1936, pathologists K. E. Lande and W. M. Sperry at Harvard University looked at cholesterol levels and degree of coronary artery occlusion in individuals who had died a sudden death. They found no correlation; there were individuals with low cholesterol and a high degree of occlusion and individuals with high cholesterol and a low degree of occlusion.29
A much publicized 1955 report on artery plaques in American soldiers killed during the Korean War showed high levels of atherosclerosis, but another report—one that did not make it to the front page of the New York Times—found that Japanese natives had almost as much pathogenic plaque—65 percent versus 75 percent—even though the Japanese diet at the time was lower in animal products and fat.30 A 1957 study of the largely vegetarian Bantu found that they had as much atheroma as other races from South Africa who ate more meat.31 A 1958 report noted that Jamaican blacks showed a degree of atherosclerosis comparable to that found in the United States, although they suffered from lower rates of heart disease.32
- On Sale
- Jan 31, 2017
- Page Count
- 272 pages
- Grand Central Life & Style