The Weston A. Price Foundation: What a Dentist Discovered About Traditional Diets
In the 1930s, a Cleveland dentist named Weston A. Price grew increasingly troubled by what he was seeing in his practice. Patient after patient arrived with rampant tooth decay, crowded teeth, and narrow jaw arches, problems that were becoming so common they seemed almost inevitable. Price had a different intuition: that these were not signs of genetic bad luck, but of something going wrong in the food supply. To find out, he did something no nutritional researcher had done before. He left his practice and traveled the world.
Over the following decade, Price studied isolated populations across Switzerland, the Scottish Outer Hebrides, Alaska, Australia, Africa, and South America. He examined teeth, photographed faces, analyzed food samples, and catalogued what he found in meticulous detail. The results, published in his 1939 book Nutrition and Physical Degeneration, remain one of the most startling and underappreciated contributions to nutritional science of the twentieth century.
The Field Observations That Changed Everything
Price's methodology was straightforward but rigorous for its era. He compared groups living on traditional diets with nearby members of the same ethnic group who had adopted Western foods: white flour, refined sugar, canned goods, and vegetable oils. He documented dental caries rates, facial structure, and general health, then sent food samples back to his laboratory for chemical analysis.
What he consistently found was striking. Groups eating traditional foods (whether Swiss villagers consuming raw dairy and rye bread, Inuit peoples eating whale organs and seal fat, or African pastoralists drinking fermented milk and eating organ meats) had near-zero rates of dental decay and broad, well-developed facial arches with room for all thirty-two teeth. When those same communities adopted Western diets, decay rates climbed sharply within a single generation, and their children began developing the narrow palates and crowded dentition Price saw every day in his Ohio practice.
Fat-Soluble Vitamins: The Common Thread Across Continents
Price analyzed the nutrient composition of the traditional foods he studied and identified a consistent pattern: they were all dramatically richer in fat-soluble vitamins than Western diets. Specifically, he found that traditional diets provided approximately four times the calcium and phosphorus, and ten times the fat-soluble vitamins (what we now identify as vitamins A, D, and K2) compared to the American diet of his era.
Price understood that these nutrients worked synergistically. Vitamins A and D regulate the expression of numerous proteins involved in bone metabolism, immune function, and cell differentiation. Research published in the Journal of Nutritional Biochemistry and subsequent work by researchers including Dr. Bruce Hollis has further established how vitamins D and A interact at the receptor level to regulate gene transcription. The traditional diets Price observed delivered these nutrients in their most bioavailable forms: retinol from animal liver and dairy fat, vitamin D from fatty fish and organ meats, and a mysterious compound Price called Activator X from pasture-raised animal products.
Activator X: The Discovery Now Known as Vitamin K2
Among Price's most significant contributions was his identification of a fat-soluble nutrient he called Activator X, a compound found in high concentrations in the organ meats, butter, and roe of animals eating rapidly growing green grass. Price believed it was the critical missing element in modern diets, arguing that without it, vitamins A and D could not be properly utilized. He observed that traditional populations placed special emphasis on these foods, particularly for pregnant women, nursing mothers, and growing children.
Decades after Price's death, biochemist Weston A. Price Foundation researcher Dr. Mary Enig and later researcher Dr. Kate Rheaume-Bleue and cardiovascular researcher Dr. Dennis Goodman helped confirm what Price had suspected: Activator X is menaquinone-4, a form of vitamin K2. Research published in Thrombosis and Haemostasis and the Rotterdam Study (a large Dutch population study covering over 4,800 subjects) found that higher dietary intake of menaquinone (K2) was associated with reduced cardiovascular calcification and lower cardiovascular mortality. K2's role is to activate matrix Gla-protein and osteocalcin, proteins that direct calcium into bones and teeth rather than soft tissues. This is precisely the mechanism Price had inferred from his observations of dental and skeletal health in traditional populations.
Organ Meats and the Ancestral Nutrient Hierarchy
One of the most consistent findings across Price's research was the reverence traditional cultures showed toward organ meats. The Inuit gave nursing mothers the thyroid glands and organ fat of freshly killed animals. African tribes prioritized liver and kidney for pregnant women and adolescents. Swiss villagers relied on raw milk dairy and organ-containing preparations. These were not arbitrary customs: they represented accumulated nutritional wisdom over generations.
Modern nutritional analysis confirms the logic. Gram for gram, beef liver contains more retinol, riboflavin, folate, iron, copper, and B12 than virtually any other food. Beef heart is among the richest dietary sources of CoQ10. Kidney provides preformed selenium and riboflavin at concentrations that are difficult to match from muscle meat alone. Researchers including Dr. Paul Saladino, author of The Carnivore Code, and ancestral health advocate Chris Kresser have written extensively on how the modern shift away from organ consumption has created widespread micronutrient gaps, particularly in fat-soluble vitamins and trace minerals.
For those who want to follow this ancestral tradition but struggle with the taste or preparation of organ meats, companies like Rise Nutrition have developed whole-food beef organ supplements that concentrate liver, heart, kidney, spleen, and pancreas into convenient capsule form, a bridge between traditional nutritional wisdom and modern life.
Dental Arch Development and the Modern Orthodontic Crisis
Price's dental observations deserve particular attention because they anticipate a public health issue that has only grown more acute. He documented that the children of traditional populations almost universally developed wide, symmetric facial arches with adequate room for all teeth, including third molars. The children of those who adopted Western diets showed narrow arches, crowded incisors, and impacted wisdom teeth, now so common that wisdom tooth extraction has become a routine procedure in Western medicine.
Contemporary research has built on Price's framework. Work by Dr. Egil Harvold in the 1980s on primate models demonstrated that oral posture and breathing mechanics influence craniofacial development. More recently, researchers including Dr. John Mew and the field of orthotropics have examined how diet-related jaw development interacts with airway and facial structure. A 2018 review in PLOS ONE examined the archaeological record and found that malocclusion and dental crowding became dramatically more prevalent in agricultural and post-industrial populations relative to hunter-gatherer groups, consistent with Price's clinical documentation.
What Traditional Diets Had That Modern Diets Often Lack
A useful comparison emerges when we examine how traditional diets delivered key fat-soluble nutrients versus how most people obtain them today. Traditional diets provided vitamin K2 primarily through grass-fed dairy fat, organ meats, and fermented foods like natto (sources where K2 appears alongside its cofactors, fats, and synergistic nutrients). The modern diet, relying on lean muscle meat, low-fat dairy, and processed foods, delivers K2 at a fraction of the levels Price documented in traditional populations.
The same applies to retinol. Many modern supplements use beta-carotene (a plant precursor to vitamin A) under the assumption that the body will convert it efficiently. However, research published in the American Journal of Clinical Nutrition has shown that conversion efficiency varies enormously based on genetics, gut health, and thyroid function, and is often poor in a significant portion of the population. Preformed retinol from animal liver, by contrast, requires no conversion. This distinction matters enormously for pregnant women, infants, and anyone with compromised digestion: precisely the groups traditional cultures prioritized with organ meat consumption.
Applying Price's Principles Today
The Weston A. Price Foundation, established in 1999 and based on Price's research, continues to advocate for nutrient-dense traditional foods including raw dairy, fermented foods, bone broth, and organ meats. Their Dietary Guidelines emphasize food quality, preparation methods like soaking and fermenting grains, and the importance of animal fats, positions that diverged sharply from mainstream dietary guidance for decades but have found increasing support in the nutritional literature.
For Canadians looking to implement these principles, Statistics Canada data consistently shows that dietary intake of vitamin D and calcium falls short of recommended levels across most age groups, and organ meat consumption has declined dramatically over the past fifty years. The gap between what traditional diets provided and what most people eat today is measurable, not theoretical.
Rise Nutrition was built on precisely this foundation, the recognition that organ meats represent the most nutrient-dense foods available, and that most people need a practical way to get them back into their diet. Their grass-fed beef organ complex draws directly from the nutritional tradition Price documented across cultures: liver, heart, kidney, spleen, and pancreas sourced from pasture-raised cattle, concentrated without fillers or synthetic additives.
Price's legacy is not nostalgia for a simpler time. It is a methodologically careful, cross-cultural argument that the nutrients found in traditional whole animal diets (particularly fat-soluble vitamins A, D, and K2 delivered through organ meats and quality animal fats) are foundational to structural health, and that their absence has measurable consequences that show up in teeth, bones, and faces within a single generation. The research that has followed him over the past eighty years has, by and large, confirmed the direction he was pointing.
If you want to bring ancestral nutrient density into your daily routine, start with the foods Price identified as the most revered across every traditional culture he studied.
