The Fat of the Land: An Arctic Explorer's All-Meat Diet and the 1950s Heart Disease Debate

Table of Contents

• Key Points
• Background: An Explorer Who Ate Only Meat
• The Medical Check: Testing a Meat-Eating Pioneer
• The Heart Doctor's View: Paul Dudley White on Fat and Heart Disease
• The Nutrition Professor's View: Fredrick J. Stare on Diet and Health
• Key Findings: The Dental Evidence From Eskimos
• Iceland: A 600-Year Natural Experiment in Perfect Teeth
• The Bible and the Fat of the Land
• The Big Picture: Human Diet Before Agriculture
• What This Means for Patients Today
• Limitations: What the Book Could and Couldn't Prove
• Practical Recommendations
• Frequently Asked Questions
• Source Information

Key Points

• Weight control, physical activity, and not overeating may matter more than the exact fat percentage in the diet.
• Dental cavities were rare on traditional meat/fat diets and appeared when refined carbohydrates entered the food supply.
• Extreme high-fat diets carry unknown long-term risks; no controlled studies have proven them safe for everyone.
• Coronary heart disease has multiple causes, including heredity, age, sex, stress, and exercise—not fat alone.

Background: An Explorer Who Ate Only Meat

Vilhjalmur Stefansson was not a physician or a laboratory scientist. He was an Arctic explorer and anthropologist who spent years living among Eskimo (Inuit) communities in northern Canada. In 1910, he began living with the Eskimos along the north coast of Canada, particularly at Coronation Gulf, as the first white man most of them had ever seen. What he observed there challenged the nutritional beliefs of his time.

The Eskimos seemed to Stefansson to be "the healthiest people I had ever lived with." They ate a diet consisting almost exclusively of meat and fat—no fruits, no vegetables, no grains, no sugar. This observation stayed with him. In 1946, he published the first edition of this book under the title Not by Bread Alone, and it immediately earned the label "controversial." The belief that a person cannot be healthy on meat alone had already disappeared from most medical schools, but the public still widely held that a high-meat diet was harmful and needed to be "diluted" with carbohydrates.

By the time the enlarged edition was published in 1956, Stefansson was 77 years old—seven years past the life expectancy at the time of his birth. He had consumed more meat, according to his Harvard colleague Dr. Fredrick J. Stare, than probably any other person alive. And he was in excellent health.

The Medical Check: Testing a Meat-Eating Pioneer

The book's backstory includes a notable medical moment. One day in January, Dr. Paul Dudley White, the famous Boston heart specialist, telephoned his colleague Dr. Fredrick J. Stare. White said: "Stefansson is in town. Could you arrange for someone to stop by his hotel room and draw a blood specimen? You know he has been eating largely meat for most of his life, and it would be interesting to know what his cholesterol and lipoproteins run."

Stefansson had no objection. In fact, he went even further—he came to the Harvard laboratory himself the next day to volunteer a second blood sample so the researchers could have duplicate specimens for analysis. This was Stare's introduction to the famous explorer. Dr. Stare, then Professor of Nutrition and Chairman of the Department of Nutrition at the Harvard School of Public Health, later described Stefansson's "intellectual vigor" and "breadth of knowledge" as remarkable.

Pure coincidence added to the occasion: the School of Public Health was holding a seminar on the very afternoon Stefansson arrived to give his extra blood sample. Two staff members were reporting on field observations of dysentery outbreaks in the Arctic. Naturally, Stefansson was invited to attend and participate in the discussion. His keen mind, sharp wit, and especially his "anthropologic approach to the study of biologic problems" impressed the Harvard group.

The Heart Doctor's View: Paul Dudley White on Fat and Heart Disease

Dr. Paul Dudley White, one of the most influential cardiologists of his era, contributed a commentary that directly addressed the big question raised by Stefansson's lifestyle: Has a lifetime of high animal fat intake been good or bad for him—and would it be good or bad for you?

White explained that coronary atherosclerosis (hardening and narrowing of the heart's arteries due to fatty plaque buildup) is the underlying cause, when severe, of two well-known conditions: angina pectoris (chest pain from reduced blood flow to the heart) and coronary thrombosis (a heart attack caused by a blood clot blocking a coronary artery). He noted that doctors had talked about these conditions for many years but had only recently begun serious research. "Even now," he wrote, "we are barely scratching the surface."

White divided the likely causes of heart disease into two categories:

• Basic (host) factors that patients cannot change: race (which he considered a doubtful factor on its own), heredity (which appears to have a potent influence), age (an insuperable factor chronologically, though potentially modifiable physiologically), and sex (heavily weighted against males in youth and middle age).
• Environmental factors that can be altered: stress and strain (inadequately studied), exercise (hopeful but unproven in preventing disease), toxic agents such as tobacco and alcohol (of doubtful importance in his view), and diet (which held "the limelight").

Most researchers at the time regarded overweight from overeating as a harmful factor, though not the main cause of hypertension (high blood pressure). The typical American diet, in which 40 to 50 percent of calories come from fat, was widely considered "a potent factor in the overwhelming epidemic of coronary heart disease which has descended upon us in the present generation as a pernicious blight."

Yet Stefansson proposed almost the opposite: that a diet very rich in fat—up to 80 percent of total calories, with the rest in protein—is best for health. White found this fascinating and raised a key scientific question: Could the extremes of fat intake actually be safer than the middle ground? In other words, is a very high-fat diet (80 percent) or a low-fat diet (20 to 30 percent) less risky than an intermediate mixture (40 to 50 percent)?

White agreed with Stefansson that a formal study should compare high-fat eaters (80 percent and above) with intermediate- and low-fat eaters who otherwise lived similar lives. "More controlled scientific data are needed by all concerned," White wrote, "especially by the high-fat proponents." He paraphrased the book's title to make his point: coronary heart disease is caused "not by fat alone," despite the probable major importance of excessive fat in the diet. If diet eventually proves to be an important key to counteracting heredity's effects, he concluded, "we may rest content."

The Nutrition Professor's View: Fredrick J. Stare on Diet and Health

Dr. Fredrick J. Stare, a Harvard nutrition professor, offered a more pragmatic perspective. He emphasized the anthropological approach to nutrition research—an approach that studies what different human populations actually eat and how their health compares, rather than relying only on laboratory experiments.

Stare said this approach confirms two important points:

1. Good health can be achieved through a wide variety of dietary patterns.
2. Different peoples develop their own standards of what counts as a "proper" diet—standards shaped by culture, not just biology.

He credited Stefansson as one of the first researchers to apply this discipline to human biology, beginning his anthropological studies of the Eskimos a half-century earlier. Stefansson's extensive notes and collections are preserved in the Stefansson Collection at the Dartmouth College Library. In 1941, the Committee on Food Habits of the National Research Council was formed, marking the emergence of cultural factors in nutrition as a distinct focus of research.

Stare described Stefansson's eating habits with a mix of amusement and admiration. When he gave Stefansson dinner at the Harvard Club in Boston, the meal was roast beef with an extra serving of beef fat. At Stare's home, it was steak with extra fat—and nothing else except Martinis and cheese. "Some of the fat is consumed first," Stare noted. He compared this to the famous Du Pont-Holiday-Pennington diet that had made headlines a few years earlier, calling that diet "the Stefansson regimen dressed up with a little 'bedside manner'"—the bedside manner being a half-hour morning walk and absolutely no alcohol.

Stare highlighted what he considered the most important "but" about Stefansson's health: Stefansson has never been obese; he has always been physically active; and he doesn't overeat. This observation mattered because it separated the effects of a high-fat diet from the effects of excess weight and sedentary living.

Another fascinating cultural detail: Stare once asked Stefansson whether the Eskimos tenderized tough cuts of meat. The answer, recorded in the first edition, was no—because the Eskimos don't chew much. "The uncivilized Eskimo has never had practice in herbivorous mastication and his mother has never told him to chew for the good of his health. So he gives the piece a bite or two, rolls it around his mouth once or twice, and swallows." Stefansson himself believed tougher cuts had the best flavor, though his wife Evelyn used commercial tenderizers generously at home.

Stare's broader message was about adaptability. "One of the most interesting developments of modern nutrition has been the emergence of a number of studies emphasizing the great ability of experimental animals, including man, to adapt to wide variations in diet." Humans need protein, carbohydrate, fat, various vitamins and minerals, and water—but these can come from many food combinations. Stefansson, he noted, believed humans don't actually need more carbohydrate than is naturally contained in whole meat and whole milk.

Stare also pointed out that he had studied vegetarians of comparable age to Stefansson who were in equally good health. "What is important is that our diets provide us with adequate amounts of the many amino acids, vitamins, minerals, and fatty acids we need, plus enough energy to balance our caloric needs so that we keep our weight in the desirable range. It is also important that we enjoy what we eat."

Key Findings: The Dental Evidence From Eskimos

One of the most striking claims in the book concerns dental health. Stefansson reported that Eskimos living on their traditional hunter diet—exclusively meat and fat—had virtually no tooth decay (dental caries). He quoted a distinguished orthodontist who said the Eskimos "are paying for civilization with their teeth," meaning that tooth decay was one of several health losses that accompanied the shift to modern, carbohydrate-heavy foods.

This idea received significant support from Dr. Leuman M. Waugh, of the School of Dental and Oral Medicine at Columbia University. During his early career, Waugh made trips for five summers to Labrador, where he discovered that tooth decay, like rickets (a bone disease from vitamin D deficiency), was worst in communities that ate the most European foods and nearly or completely absent where European goods were unknown or negligible. Dr. William A. Thomas of Chicago was making similar discoveries about rickets at the same time. Waugh later conducted similar studies in Alaska over a number of seasons and found the same pattern.

By 1956, Waugh's once-heretical views were receiving mainstream recognition. He received the Albert H. Ketcham Memorial Award, the highest honor of the American Association of Orthodontists, at their 52nd annual session in Boston in May 1956. According to the Boston Daily Globe, Waugh told an audience of more than 1,200 members and guests: "Eskimos who'd never been exposed to civilization had the best teeth in the world. But [they] have been paying for civilization with their teeth. No Eskimo ever had decayed teeth until he got the white man's diet... Eskimos have filthy mouths, too. Not much evidence there that keeping the mouth clean has anything to do with lack of cavities."

Not everyone agreed. In April 1956, Columbia University's own newsletter, the Columbia Reporter, described a dental research expedition to the Amazon Indians by Drs. Harts H. Neumann and Nicholas A. Di Salvo of the Faculty of Medicine. Their findings supported a different theory: that resistance to decay is related primarily to the pressure load placed on the teeth—that chewing with great pressure on hard foods causes "work hardening," making teeth more resistant to cavities. In other words, the mechanism might be mechanical (chewing hard foods) rather than nutritional (avoiding carbohydrates).

Iceland: A 600-Year Natural Experiment in Perfect Teeth

Stefansson presented Iceland as a natural experiment that neatly separated the diet theory from the toothbrushing theory. This was especially valuable because Iceland had no native (aboriginal) population; its people are descendants of settlers, mainly from Ireland and Norway, with a total of probably less than 10 percent from Denmark, England, Scotland, and Sweden.

The historical record shows that from the beginning of the firmly historical period around 870 AD until after 1100, Iceland had material commerce with Europe and imported some carbohydrates. Excavations of churchyards and burial places from this period reveal traces of a little tooth decay. But after 1100, when commerce is considered to have ceased, dental caries disappeared entirely. No tooth decay appeared anywhere in Iceland until after 1800, when modern commerce with Europe was renewed.

Kristjan Eldjar, Director of the National Museum in Reykjavik, confirmed in a 1955 letter that it was "definitely established" that there was no dental caries during those 600 years anywhere in Iceland.

What did Icelanders eat during that decay-free period? In descending caloric importance: milk and milk products, mutton, beef, and fish. There were no imported carbohydrates. The only local non-animal food of any importance was soup made of Iceland moss—which is actually a lichen, not a true moss—and it required long journeys to the mountains to collect. The literature shows those journeys were more like summer picnics, done more for fun than for serious food gathering.

Today's Icelandic diet resembles that of England or New England, and the dental caries rate is similar, "with the regulation dentistry, toothbrushing, hard chewing of food for the good of the teeth, and the like—all, of course, with little result," as Stefansson wryly observed.

The Bible and the Fat of the Land

The book's title derives from the Bible, and Stefansson devoted considerable attention to scriptural evidence that fat meats were highly valued in ancient times. In the fourth chapter of Genesis, the first recorded offering to God is described: Cain brought vegetables, while Abel brought "the firstlings of his flock and of the fat thereof." The text reports that "the Lord had respect unto Abel and to his offering: But unto Cain and to his offering he had not respect."

In Genesis 45:17-18, both Jews and Egyptians appear to have thought well of a high-fat diet. Pharaoh said to Joseph: "Take your father and your households, and come unto me: and I will give you the good of the land of Egypt, and ye shall eat the fat of the land."

Stefansson consulted eminent Bible scholars, including Dr. Edgar J. Goodspeed and his colleagues in Chicago, who confirmed that in such passages the Old Testament Hebrews were thinking of fat mutton or mutton suet when they spoke of "the fat of the land." He also quoted Isaiah 25:6, describing a feast "of fat things... of fat things full of marrow" prepared for all people by the Lord of hosts.

One interpretive puzzle involved Leviticus 7:23, which contains instructions about eating fat. Stefansson consulted Dr. Ross, described as a kind of food editor for a scholarly religious reference work. Dr. Ross's preliminary view was that when fats have been offered in sacrifice, or when it is intended that they be so offered, those involved in the offering should not themselves partake. Stefansson summarized this as: "Don't be an Indian giver. When you have offered up in sacrifice delicious things like the fats of the ox, sheep and goat, don't try any such double-crossing trick as eating them yourself." So the biblical restriction on fat was about religious ritual, not health—and it implied that fat was considered a delicacy worth offering to God.

The Big Picture: Human Diet Before Agriculture

Stefansson placed his argument in a broad evolutionary context. He cited a 1956 article by Johannes Iversen, an anthropologist-botanist, in Scientific American, titled "Forest Clearance in the Stone Age." Iversen called the transition from hunting to agriculture "perhaps the greatest single step forward in the history of mankind." In the Mesolithic Age, humans lived by the spear, the bow, and the fishing net. The shift to farming came independently at different times in different parts of the world.

The timeline is striking:

• Less than 15,000 years ago: agriculture began in China and the Near East
• 5,000 years ago: agriculture reached Greece and Italy
• 2,000 years ago: agriculture was introduced to England (Julius Caesar witnessed its introduction by Belgic settlers)
• 1,500 years ago: agriculture reached Scotland

Stefansson's logic was simple: If meat truly requires carbohydrates and other vegetable additives to be wholesome, then the Eskimos—who lived entirely on meat until the last few decades—should have been in wretched health. But they weren't. He acknowledged Iversen's point that carbohydrates made civilization possible, because farmers can produce many times more food per unit of land, supporting large families, leisure, and cities. But he insisted that to make this a clear gain, humans must feed a large portion of carbohydrates to livestock, turning them into meat and milk. Otherwise, he argued, "he suffers in individual health; and in happiness, for the unhealthy are unhappy." Carbohydrates, taken as a high percentage of the meal, are "not conducive to optimum health."

What This Means for Patients Today

This 1956 book raises questions that remain relevant to modern patients. First, it demonstrates that humans can survive—and apparently thrive—on diets that vary enormously in macronutrient composition (the balance of carbohydrates, fats, and proteins). Stefansson's personal experience, along with the Eskimo populations he studied, shows that a diet of nearly pure meat and fat can sustain health and vigor for decades. This is a testament to human adaptability.

Second, the book highlights the important distinction between dietary fat and overall health habits. Stare emphasized that Stefansson was never obese, stayed physically active, and didn't overeat. These factors may be as important as, or more important than, the specific fat content of his diet.

Third, the dental evidence—particularly from Iceland—suggests that carbohydrate consumption, not poor oral hygiene, is the primary driver of tooth decay in populations that have no access to modern dental care. Modern dentistry largely accepts that sugar and refined carbohydrates feed cavity-causing bacteria in the mouth, which supports Stefansson's basic contention, even if his methods were less rigorous than today's standards.

At the same time, modern cardiology has established that certain types of fat—particularly saturated and trans fats—can raise LDL ("bad") cholesterol and increase the risk of coronary artery disease for many people. White's question about whether extreme diets are safer than moderate ones remains an area of active research. Popular modern diets such as the ketogenic diet (very high fat, very low carbohydrate) echo Stefansson's approach, and researchers continue to study their long-term effects on heart health, cholesterol, and other outcomes.

Limitations: What the Book Could and Couldn't Prove

It is important to recognize the limits of this evidence. First, Stefansson's personal experience is a case study of one person. His excellent health at age 77 proves that one individual could tolerate a high-fat, meat-only diet for decades, but it does not prove that everyone could—or that most people would see the same results.

Second, the laboratory science of 1956 was primitive by modern standards. The blood specimens drawn for cholesterol and lipoprotein testing were analyzed using techniques that are far less detailed than today's advanced lipid panels. We do not know Stefansson's LDL, HDL, or triglyceride levels in modern terms, nor do we have imaging studies of his coronary arteries.

Third, as White himself acknowledged, no controlled scientific data existed then (or now, on this scale) comparing well-matched groups of people eating 80 percent fat, 40 to 50 percent fat, and 20 to 30 percent fat diets over long periods. The book is a valuable hypothesis-generating work, not a randomized controlled trial.

Fourth, the historical dental records from Iceland, while suggestive, rely on skeletal remains and burial excavations. The absence of visible cavities in teeth is strong evidence, but it doesn't tell us about other aspects of health, and we must rely on the interpretations of the museum director and others.

Finally, the book was written at a time when the link between diet and heart disease was only beginning to be understood. The past 70 years of cardiovascular research have provided crucial context—both supporting some of Stefansson's observations about carbohydrates and challenging his enthusiasm for unlimited animal fat.

Practical Recommendations

What should a modern patient take away from this 1956 classic? Both of the physician commentators offered practical wisdom that still holds up well:

1. Maintain a healthy weight. Stare noted that Stefansson was never obese and never overate. Weight control remains one of the strongest predictors of metabolic health.
2. Stay physically active. Stefansson was described as always physically active. Regular exercise is one of the most robust protective factors for heart disease.
3. Eat a diet you enjoy that meets your nutritional needs. As Stare said, what matters is adequate amino acids, vitamins, minerals, and fatty acids, plus enough energy to balance caloric needs. "It is also important that we enjoy what we eat."
4. Be wary of extreme diets. White's question—whether 80 percent fat is safer than 40 to 50 percent fat—was never answered by high-quality research. Extreme dietary approaches carry unknown long-term risks and should be undertaken with medical supervision.
5. Limit refined carbohydrates and sugar. The dental evidence in this book, supported by modern understanding of tooth decay, argues strongly for limiting sugary and refined carbohydrate foods. This is one area where Stefansson's message has become mainstream.
6. Know your own risk factors. Heredity, age, and sex are beyond your control, as White explained. But stress, exercise, tobacco, alcohol, and diet are modifiable. Modern patients should work with their doctors to address the factors they can change.
7. Don't confuse legitimate concerns about fatty diets with the value of a healthy meat intake. Lean protein is an important part of a balanced diet, and the "tougher cuts" Stefansson praised can be affordable, flavorful choices.

Ultimately, the 1956 debate between Stefansson, Stare, and White did not resolve the question of the ideal human diet. It did, however, establish something perhaps more valuable: the recognition that human beings can adapt successfully to a remarkable range of foods, and that dogma about "one right way" to eat often outpaces the evidence. As White put it, coronary heart disease is caused "not by fat alone"—and, we might add, not by meat alone either.

Frequently Asked Questions

Is a very high-fat, meat-only diet safe for health?

One explorer followed this diet for decades and remained healthy, but this is only one person’s experience. The book’s medical commentators stressed that being active, never overweight, and not overeating were also important. No controlled studies have proved that an 80 percent-fat diet is safe for everyone, so extreme diets need medical supervision.

What did the heart specialist say about fat and heart disease?

Dr. Paul Dudley White said coronary heart disease is caused “not by fat alone.” He argued that heredity, age, sex, stress, exercise, tobacco, and alcohol also matter. He questioned whether a very high-fat diet is safer than a moderate one and emphasized that more controlled scientific data were needed before drawing firm conclusions.

Why did the Eskimos and Icelanders have such good teeth?

Traditional meat and fat diets contained no refined carbohydrates, and tooth decay was rare or absent. In Iceland, no decay appeared for 600 years while imported carbs were absent, then decay returned with modern foods. However, another theory suggested chewing hard foods might harden teeth, not just avoiding carbohydrates.

Is a ketogenic diet similar to the diet in this book?

Yes, modern ketogenic diets are very high in fat and very low in carbohydrates, echoing Stefansson’s approach. However, researchers are still studying their long-term effects on heart health and cholesterol. The book’s authors noted that humans can adapt to many diets, but no extreme diet is proven better without medical supervision.

What are the limitations of the evidence from this 1956 book?

The explorer’s health is only one case study and may not apply to everyone. Blood tests from 1956 lacked modern detail, and no controlled trials compared different fat intakes. Historical dental records rely on skeletal remains and interpretations. The book is hypothesis-generating, not proof of an ideal diet.

What practical advice can I take away from this book today?

Maintain a healthy weight, stay physically active, and enjoy a diet that meets your nutritional needs. Avoid extreme diets without medical guidance, limit refined carbohydrates and sugar, and know your personal risk factors like heredity and age. Lean protein can be part of a balanced diet.

I have heart disease and I'm considering an all-meat or very high-fat diet. When should I get a second opinion?

Seek a second opinion before adopting an extreme high-fat or all-meat diet, especially with heart disease. The 1956 debate about very high-fat diets remains unresolved; no high-quality research has shown that 80 percent fat is safer than the typical 40 to 50 percent. Certain fats can raise LDL cholesterol and increase risk of coronary artery disease, while extreme diets carry unknown long-term risks and need medical supervision. Since heredity, age, and sex are beyond control, a second opinion can clarify how your modifiable risk factors—diet, exercise, stress—should be balanced. Diagnostic Detectives Network provides independent expert second opinions.

Source Information

Original book: The Fat of the Land (An Enlarged Edition of Not by Bread Alone), by Vilhjalmur Stefansson, with commentaries by Fredrick J. Stare, M.D. (Professor of Nutrition and Chairman, Department of Nutrition, Harvard School of Public Health) and Paul Dudley White, M.D.

Publication: The Macmillan Company, New York; copyright 1956 by The Macmillan Company; enlarged edition of Not by Bread Alone, copyright 1946 by The Macmillan Company. Third printing 1961.

Additional contributors cited in the original: Eugene F. Du Bois, M.D. (Introduction: The Physiological Side) and Earnest A. Hooton, Ph.D., Sc.D. (Introduction: The Anthropological Side).

This patient-friendly article is based on the front matter, commentary, and introductory sections of the original peer-reviewed book. It is provided for educational purposes and is not a substitute for professional medical advice. Patients should consult their healthcare providers before making significant changes to their diet or lifestyle.