Fermented Foods History and Cultures

Almost every traditional human culture independently invented food fermentation. Before refrigeration, canning, and chemical preservatives, fermentation was the universal way to extend food beyond the harvest, store summer vegetables into winter, transform indigestible substrates (like raw soybeans or raw cassava) into nourishing staples, and produce alcohol from grains and fruits. The methods convergent-evolved across continents that had no contact with each other: cabbage was lacto-fermented from Germany to Korea (sauerkraut and kimchi); millet and cassava were fermented across Africa; soybeans were fermented across East and Southeast Asia (miso, soy sauce, natto, tempeh); milk was fermented from the Caucasus to the Maasai (kefir, yogurt, kumis, amasi); honey was fermented into mead from ancient Egypt to Norse Scandinavia. This page maps the major traditional fermented foods by region, the cultural roles they played, the UNESCO-recognized Korean gimjang kimchi tradition, the catastrophic loss of fermented foods in the post-1950s industrial Western diet, and why returning to traditional ferments is partly a project of restoring ancestral foodways.

Table of Contents

  1. Fermentation as a Universal Human Invention
  2. Sauerkraut and the Germanic-Eastern European Tradition
  3. Kimchi and the Korean Gimjang UNESCO Heritage
  4. Kefir and the Caucasus Mountains
  5. Kombucha and the Manchurian Origin
  6. Miso, Natto, and the Japanese Soy Tradition
  7. Tempeh and Indonesian Mold Fermentation
  8. Kvass and the Russian Bread Beer
  9. Lacto-Fermented Vegetables Worldwide
  10. Fermentation in African Foodways
  11. The Industrial Loss of Fermented Foods
  12. The Modern Revival
  13. Key Research Papers
  14. Connections

Fermentation as a Universal Human Invention

Food fermentation appears to be at least as old as agriculture. Residue analyses of pottery vessels from Jiahu, China, dated to approximately 7000 BCE, contain chemical signatures of a fermented beverage made from rice, honey, and fruit. Egyptian tombs from the Old Kingdom (~2500 BCE) depict bread baking and beer brewing as parallel processes both rooted in grain fermentation. Sumerian texts from approximately 1800 BCE include the Hymn to Ninkasi, a religious poem that is also a beer recipe. Lacto-fermented vegetables appear in Chinese records of the Zhou dynasty (1046–256 BCE) and likely predate them.

What is striking is the independent convergent invention across cultures without contact. Cabbage was lacto-fermented in Germany and in Korea long before the two regions had meaningful trade. Soybeans were fermented in China, Japan, and Indonesia along independent lineages. Milk was fermented in the Caucasus, the Eurasian steppe (kumis, mare's milk), and East Africa (Maasai). Honey was fermented into mead in Norse Scandinavia, Ethiopian highlands (tej), Egyptian temples, and pre-Columbian Mesoamerica (xtabentun, balche).

The convergence makes sense biologically. Any sufficiently sugar-rich or starch-rich substrate left in a warm anaerobic environment will ferment, because the wild lactic acid bacteria and yeasts on the surface of all fresh foods will multiply when given the chance. Humans living anywhere — from tropical Indonesia to subarctic Scandinavia — will occasionally notice that "spoiled" food has not actually spoiled but has transformed into something edible, longer-lasting, and often more palatable. Selecting for the good ferments and against the bad ones is then a process of trial and error spanning generations.

The functional roles convergent-evolved as well: food preservation (extending the harvest beyond the growing season), nutritional improvement (degrading anti-nutrients, increasing vitamin content, partially pre-digesting protein), food safety (the low pH and bacteriocin production suppressing pathogen growth), beverage production (alcohol from grains and fruits), and flavor development (the complex tartness, umami, and aromatic compounds that distinguish a fermented food from its raw substrate). These same five functions are why fermented foods spread and persisted — they solved real problems for pre-industrial people.

Back to Table of Contents

Sauerkraut and the Germanic-Eastern European Tradition

Sauerkraut — literally "sour cabbage" in German — is the canonical Germanic and Eastern European fermented vegetable. The technique is simple: shred cabbage, salt it (typically 2% salt by weight), pack it tightly into a crock or jar to express the juice and exclude air, and let it ferment at cool room temperature for two to six weeks. The salt draws water out of the cabbage cells (osmosis), creating a brine that submerges the kraut and excludes oxygen. The wild lactic acid bacteria on the cabbage leaves then bloom in the anaerobic environment, dropping the pH to ~3.5 and creating a shelf-stable food that will keep for months in a cool cellar.

The technique is far older than the German name implies. Lacto-fermented cabbage was being made in China during the construction of the Great Wall (~3rd century BCE), where it was reportedly fed to workers. From China the technique appears to have moved westward into Central Asia and eventually into Eastern Europe, where it spread north and west through the Germanic territories. By the medieval period it was a staple winter food across the cold-climate regions of Europe.

The role in maritime medicine was important. Captain James Cook's second voyage (1772–1775) on HMS Resolution famously had no deaths from scurvy — an unprecedented record at the time — in part because Cook insisted on the ship carrying large quantities of sauerkraut. Cook had read James Lind's work on citrus as an antiscorbutic and was experimenting with multiple approaches. Sauerkraut worked well enough that the Royal Navy adopted it as standard issue, alongside lemon juice. The mechanism is straightforward in retrospect: vitamin C is heat-labile and destroyed by cooking, but it is preserved in raw lacto-fermented cabbage. A cup of fresh sauerkraut delivers ~15–20 mg of vitamin C, more than enough to prevent the classic deficiency.

Across the Slavic world, sauerkraut (called kapusta kiszona in Polish, kvashena kapusta in Russian, kysaná kapusta in Czech) was a winter survival food. The household crock was filled in autumn after the cabbage harvest and consumed through the winter and early spring. Variations included adding apple slices, juniper berries, caraway seeds, dill seeds, or whole heads of cabbage stuffed with shredded kraut. Sauerkraut juice (the brine) was treated as medicinal — a tablespoonful at the first sign of cold or stomach upset.

The Pennsylvania Dutch (German-American immigrants in the 18th and 19th centuries) brought the tradition to North America, where it remains a regional specialty in Pennsylvania, Ohio, and the upper Midwest. The New Year's Day tradition of eating sauerkraut and pork (for luck and prosperity) is a direct Pennsylvania Dutch inheritance.

Back to Table of Contents

Kimchi and the Korean Gimjang UNESCO Heritage

Kimchi is to Korea what sauerkraut is to Germany — the universal household fermented vegetable, eaten with essentially every meal — but the Korean tradition is broader and deeper. Korean households make hundreds of different kimchi varieties, with different vegetables (napa cabbage is the most common, but radish, cucumber, ramps, perilla leaves, and others all have their own kimchi styles), different seasonings (the basic seasoning paste includes Korean red pepper flakes gochugaru, garlic, ginger, scallions, and fish sauce or salted shrimp), and different fermentation lengths (from one-day fresh kimchi to multi-year aged kimchi).

The annual gimjang tradition — the late-autumn communal kimchi-making event — was inscribed on the UNESCO Representative List of the Intangible Cultural Heritage of Humanity in 2013. Gimjang is the process by which extended families and neighbors gather in November and December to make a household's entire winter kimchi supply in one weekend. The volume is staggering: a traditional Korean family might make 50–100 cabbages worth of kimchi in a single gimjang, enough to feed several adults through the winter and into spring. The communal making, sharing, and the distribution of finished kimchi across the neighborhood are as important as the food itself — gimjang is a social ritual that maintains community bonds.

The microbiology of kimchi is fascinatingly complex. The fermentation follows a three-phase succession:

  1. Days 1–3: Leuconostoc phase. Leuconostoc mesenteroides and Leuconostoc kimchii bloom first, producing lactic acid and CO2 that give fresh kimchi its slight effervescence. pH drops from ~6.0 to ~4.5.
  2. Days 4–14: Lactobacillus phase. Lactobacillus plantarum, L. brevis, and L. sakei become dominant as the pH drops below 4.5, which the Leuconostoc cannot tolerate. The flavor deepens, tartness increases.
  3. Day 14+: Weissella and Pediococcus phase. Late-stage fermentation by acid-tolerant species. Flavor becomes more complex, slightly funky, with characteristic aged-kimchi aromas.

Korean families typically have preferences for kimchi at specific points in this succession. Fresh kimchi (days 1–5) is served as a tart, lightly fermented salad. Mid-aged kimchi (weeks 1–6) is the daily side dish. Aged kimchi (months 2–6 and beyond) is the preferred ingredient for kimchi stews (kimchi-jjigae), kimchi pancakes (kimchijeon), and kimchi fried rice (kimchi-bokkeumbap) — the breakdown products and complex acids of aged kimchi cook into something very different from fresh.

The traditional storage was in earthenware onggi jars buried in the ground, where the consistent cool temperature (just above freezing in a Korean winter) allowed slow steady fermentation through the winter months. Modern Korean households often have dedicated kimchi refrigerators that maintain the same cool stable temperature year-round — the appliance category is large enough to support multiple manufacturers and a vibrant consumer market.

For more on traditional Korean diet and its modern health implications, see Kimchi.

Back to Table of Contents

Kefir and the Caucasus Mountains

Kefir originated in the Caucasus mountain region — the mountainous corridor between the Black Sea and the Caspian Sea, including modern-day Georgia, Armenia, Azerbaijan, southern Russia (North Caucasus), and northeastern Turkey. The word kefir derives from a Turkic root meaning "good feeling" or "well-being."

Kefir is fermented from milk (traditionally goat, sheep, or cow) using kefir grains — a polymicrobial consortium of 30+ species of bacteria and yeast embedded in a kefiran exopolysaccharide matrix. The grains look like cottage cheese curds, are added to milk, and ferment overnight at room temperature. After fermentation the grains are strained out and saved for the next batch; the milk has been transformed into kefir.

The mountainous Caucasian cultures treated kefir grains as sacred property, traditionally not sold but only gifted within families or as wedding dowries. The Russian Empire was aware of kefir's reputation but did not have access to the grains. In the early 1900s the All-Russian Physicians Society arranged an elaborate scheme to obtain kefir grains: a young woman named Irina Sakharova was sent to the Caucasus to charm a chieftain into providing grains. When the chieftain instead attempted to abduct her as a bride, she was rescued, the case went to court, and the chieftain was ordered to pay damages — which Sakharova accepted in the form of kefir grains. Those grains became the foundation of the Soviet kefir industry, and most modern commercial kefir descends genetically from that single Caucasus origin.

Kefir occupied a central place in Caucasian traditional medicine. It was given to nursing mothers to support recovery and milk production, to infants weaning off the breast, to convalescents recovering from illness, and to the elderly as a longevity food. The Bulgarian-Caucasian zone became internationally famous in the early 1900s for unusually long-lived populations, and Elie Metchnikoff (the Nobel laureate immunologist) attributed this to the daily kefir and yogurt consumption. While the longevity claims were partly inflated by incomplete birth records and selective reporting, the underlying intuition that fermented dairy supports gut and immune health has been substantially confirmed by modern research.

See Kefir for the modern microbiology and clinical applications.

Back to Table of Contents

Kombucha and the Manchurian Origin

Kombucha originated in Manchuria (northeastern China) approximately 2,000 years ago, where it was called "tea of immortality" in some sources. From China it spread to Russia and Eastern Europe by the late 1800s, where it became known as tea kvass or cha vobruch, and was widely consumed as a daily beverage in Russian households until World War I disrupted the supply of imported tea.

The biochemistry is symbiotic. Sweet tea (typically black or green tea brewed with sugar) is inoculated with a SCOBY (Symbiotic Culture Of Bacteria and Yeast). The yeasts (Saccharomyces, Brettanomyces, Zygosaccharomyces, others) consume the sugar and produce ethanol and CO2. The acetic acid bacteria (Acetobacter, Gluconobacter, Komagataeibacter) consume the ethanol and convert it to acetic acid. The result after 7–21 days is a tart, lightly carbonated, lightly alcoholic (typically 0.5%) beverage rich in organic acids, B-vitamins, polyphenols from the tea, and the bacterial and yeast cells of the SCOBY.

The Russian use was driven partly by the cost of imported tea: a small amount of tea could brew a large amount of kombucha, multiplying the effective tea supply. The result was a household beverage somewhere between weak beer and lemonade in character, consumed throughout the day.

Kombucha entered American culture through several waves: the Russian Jewish immigrant communities in the early 1900s, the macrobiotic and natural-foods movement of the 1970s, and the modern craft beverage and probiotic boom of the 2000s and 2010s. American commercial kombucha is now a multi-billion-dollar category, though many commercial products are pasteurized and carbonated (which kills the live cultures) or are sweetened and flavored in ways that move them substantially away from the traditional unsweetened tart base. Look for refrigerated, raw, unpasteurized kombucha for the live-culture benefits, and ideally make your own — the technique is simple and a home SCOBY produces fresher product at a fraction of the cost.

Back to Table of Contents

Miso, Natto, and the Japanese Soy Tradition

Soybean fermentation in East Asia is a tradition at least 2,000 years old, with the foundational technique being the cultivation of Aspergillus oryzae (koji mold) on cooked grains and beans. Koji is the starter for miso, soy sauce, sake, mirin, and many other Japanese ferments. The cultivation of koji is treated as a craft in its own right, with apprenticeships of years and dedicated facilities (kojigura) maintained for centuries.

Miso is fermented soybean paste, typically combined with rice or barley koji, salt, and water and aged for months to years. White miso (shiro miso) is short-aged (weeks to months), light in color and mild in flavor. Red miso (aka miso) is long-aged (1–3+ years), dark in color, intense in flavor. Hatcho miso is made from pure soybeans without rice or barley, aged 2–3 years, and produces the deepest, most complex flavor. Miso soup — a small bowl of miso paste dissolved in dashi broth with a few additions (seaweed, tofu, scallions) — is eaten daily in Japanese households, often at breakfast.

Natto is fermented whole soybeans, made with Bacillus subtilis var. natto rather than koji mold. Cooked soybeans are inoculated with the bacterium and fermented warm (~40°C) for 18–24 hours, producing the characteristic sticky, stringy texture and the strong ammonia-like aroma that Westerners often find off-putting. Natto is eaten primarily in eastern Japan (the Kanto region around Tokyo) as a breakfast food, traditionally mixed with mustard, soy sauce, and chopped scallions over rice. The cardiovascular and bone-health benefits of natto are driven by its uniquely high MK-7 vitamin K2 content and the fibrinolytic enzyme nattokinase — see Natto and Nattokinase.

Soy sauce (shoyu) and the related tamari are fermented soybean liquids, the result of months-long aging of a koji-soybean-wheat mash in brine. The bacterial and yeast metabolism produces hundreds of flavor compounds. Modern industrial "soy sauce" made by hydrolyzing soy protein with hydrochloric acid is chemically very different from traditional brewed shoyu and lacks the complex flavor and probiotic content.

Sake is fermented rice, technically a beer rather than a wine (made from cooked starch enzymatically converted to sugar by koji and then fermented by yeast). The relationship between sake brewing and miso making is close enough that traditionally a single producer might make both.

Back to Table of Contents

Tempeh and Indonesian Mold Fermentation

Tempeh is a Javanese (Indonesian) fermented soybean cake made with Rhizopus oligosporus mold (sometimes Rhizopus oryzae). Cooked, dehulled soybeans are mixed with the mold spores, packed into thin cakes (traditionally wrapped in banana leaves, modernly in perforated plastic), and incubated at warm temperature for 24–48 hours. The mold grows through the bean mass, knitting the individual soybeans into a solid cake bound by white mycelium. The result is a meaty-textured, mildly nutty-flavored food substantially more digestible than raw soybeans.

The fermentation transforms the soybeans in several useful ways: the trypsin inhibitors and phytic acid that limit raw soy digestibility are degraded; the oligosaccharides that cause flatulence (raffinose, stachyose) are partially metabolized; the isoflavones are converted from glycosides to aglycones (which are absorbed more efficiently); and some strains of the mold produce vitamin B12 (an unusual property since B12 is generally a bacterial synthesis product).

Tempeh originated in Java sometime in the 17th to 18th century, possibly developed in the context of Chinese trading communities introducing soybean technology to Indonesian populations. It became a daily staple food across Java and Sumatra and from there spread throughout Indonesia and into Malaysia, Singapore, and the Philippines. The combination of high-quality plant protein, micronutrient density, low cost, and good keeping qualities (an intact tempeh cake keeps for several days at ambient temperature, longer refrigerated) made it nutritionally important in regions where animal protein was expensive.

Tempeh entered Western vegetarian cuisine through the macrobiotic movement of the 1960s and 1970s. It is now widely available in American natural-foods stores and increasingly in mainstream supermarkets. The Western preparation is often quite different from traditional Indonesian use (a typical American tempeh recipe slices and marinates it before pan-frying or baking; traditional Indonesian preparation often deep-fries it in coconut oil and serves it with chili paste).

Back to Table of Contents

Kvass and the Russian Bread Beer

Kvass is a Russian and Eastern European fermented beverage traditionally made from stale rye bread, water, and a small amount of sugar or fruit. The bread is soaked in warm water, the liquid is strained off, sugar is added, and the result is fermented with wild yeasts (often from the surface of fruit added to the brew) for 2–3 days. The result is a lightly alcoholic (0.5–1.5%), slightly sour, slightly sweet beverage with a bread-like flavor profile. Variations include kvass made with beets (svekolnaya kvass, popular in the summer as a sour soup base), kvass with fruit (apple, currant, cherry), kvass with herbs (mint, thyme), and kvass made from rye flour rather than bread.

Kvass was a daily household beverage across Russia, Ukraine, Belarus, Poland, and the Baltic states for centuries. In the Soviet era, kvass was sold from yellow street barrels in summer (the kvass na razliv tradition) for a few kopecks a glass, providing a non-alcoholic alternative to beer in the heat. The street-barrel tradition declined in the 1990s as soft drinks displaced it, but commercial bottled kvass remains widely available in the former Soviet sphere and is increasingly available in Russian-immigrant communities in North America and Western Europe.

Beet kvass deserves separate mention as a particularly therapeutic-tradition fermented beverage. Beets are sliced, packed into a jar with salt and water, and fermented for 1–2 weeks. The result is a tart, salty, mineral-rich beverage traditionally used as a tonic in convalescence, particularly in Eastern European Jewish folk medicine. The pigment betalains and the natural nitrates of beets are concentrated in the brine, contributing to plausible cardiovascular and liver-supportive effects in addition to the general probiotic content.

Back to Table of Contents

Lacto-Fermented Vegetables Worldwide

Beyond the headline ferments (sauerkraut, kimchi), almost every vegetable-growing culture developed lacto-fermentation techniques. A non-exhaustive global tour:

The technique was so universal because the underlying biology is universal — wild lactic acid bacteria grow on all fresh vegetable surfaces, and any sufficiently salty anaerobic environment will select for them. Once a culture has the basic technique, the local adaptations (which vegetables, which spices, which lengths of fermentation, which target temperatures) are matters of local taste, climate, and convention.

Back to Table of Contents

Fermentation in African Foodways

African foodways include an extraordinarily rich tradition of fermentation across grains, legumes, tubers, dairy, and beverages. A representative sampling:

The cassava fermentation deserves particular attention as a biologically essential technique. Raw cassava contains cyanogenic glycosides (linamarin and lotaustralin) that release hydrogen cyanide when the plant tissue is damaged or chewed. Eating unprocessed cassava can be acutely or chronically toxic. The traditional African processing — soaking the peeled tubers in water for days, allowing wild lactic acid bacteria to ferment them, and then cooking the fermented mass — degrades the glycosides to safe levels. The development of this technique made cassava a viable staple crop for hundreds of millions of people; the failure to apply the technique correctly can produce konzo and tropical ataxic neuropathy, neurologic diseases caused by chronic cyanide exposure.

The cyanide-detoxification example is a useful reminder that fermentation in traditional foodways is not always (or even primarily) about gut health or microbiome diversity. It is often about food safety, anti-nutrient degradation, and the basic chemistry of making a substrate edible.

Back to Table of Contents

The Industrial Loss of Fermented Foods

The mid-20th-century industrialization of the Western food system effectively eliminated traditional fermented foods from the average American diet, with parallel declines in Europe and gradually in industrializing parts of Asia. The mechanisms of loss were several:

  1. Refrigeration displaced fermentation as a preservation technique. Once households had refrigerators and freezers, the need to ferment summer vegetables to preserve them through winter disappeared. The technique survived in commercial production but largely vanished from home practice.
  2. Pasteurization and canning standards were applied to fermented products. Sauerkraut sold in cans (the dominant American market form by the 1950s) was pasteurized after fermentation for shelf stability, which killed the live cultures and removed most of the probiotic value. The same applied to commercial pickles, which shifted from lacto-fermentation to vinegar-pickling as the industry standardized.
  3. Antibiotic and chlorine use suppressed wild fermentation. Industrial agriculture's antibiotic use in animals (suppressing dairy fermentation in raw milk) and chlorine treatment of water systems (suppressing wild fermentation of homemade products) contributed to a general decline in the wild microbial inputs to food.
  4. Food safety regulation favored predictable industrial products. Traditional home fermentation has small but real risks (botulism in improperly fermented foods, intoxication from incorrectly fermented cassava). The regulatory response was to favor industrial products with predictable microbial profiles, which often meant killing the cultures.
  5. Convenience and palatability of processed alternatives. Sweetened, smooth-textured industrial yogurt is more appealing to many consumers (particularly children) than tart traditional yogurt. The industry responded to consumer preference by moving away from the traditional fermented profile.

The result, by the 1990s, was a dietary landscape where the average American consumed essentially no live fermented foods. The "yogurt" in the supermarket was often heavily sweetened, often heat-treated. Pickles were vinegar-cured. Sauerkraut was canned. Kimchi, kefir, kombucha, miso, natto, and tempeh were essentially unknown outside specialty Asian and natural-foods stores. This dietary shift coincided with the rise of allergic, autoimmune, and inflammatory diseases — correlation, not necessarily causation, but the timing fits with the broader "missing microbiome" hypothesis advanced by Justin and Erica Sonnenburg and others.

The loss of fermented foods is one strand of a broader loss of microbial diversity in industrial life: less time outdoors, more time in sterile indoor environments, frequent antibiotic exposure (especially in childhood), chlorinated water, formula feeding, cesarean delivery, refined low-fiber processed foods. The Sonnenburg "starving our microbial self" hypothesis is that the cumulative effect is a microbiome that has lost species and functions over generations, with health consequences that we are only beginning to characterize.

Back to Table of Contents

The Modern Revival

The modern revival of fermented foods began with the natural foods and macrobiotic movements of the 1970s, expanded in the 2000s and 2010s as kombucha, kefir, and kimchi entered mainstream supermarkets, and was given scientific gravity by the wave of microbiome research culminating in the Wastyk 2021 Stanford trial. The revival has several components:

The revival is real but partial. The average American still eats fewer fermented foods than the average Korean, Japanese, Bulgarian, or German did a century ago. The trajectory is upward, and the science is increasingly supportive, but the cultural restoration of fermented foods to daily dietary practice is a multi-decade project. The Wastyk trial's six-servings-per-day intervention is a useful target for individuals who want to capture the documented benefits; reaching that target is genuinely a lifestyle change for most people.

Back to Table of Contents

Key Research Papers

  1. Wastyk HC et al. (2021). Gut-microbiota-targeted diets modulate human immune status. Cell. — PubMed
  2. Marco ML et al. (2017). Health benefits of fermented foods: microbiota and beyond. Current Opinion in Biotechnology 44:94-102. — PubMed
  3. Sonnenburg ED, Sonnenburg JL (2014). Starving our microbial self: the deleterious consequences of a diet deficient in microbiota-accessible carbohydrates. Cell Metabolism. — PubMed
  4. Sonnenburg ED et al. (2016). Diet-induced extinctions in the gut microbiota compound over generations. Nature. — PubMed
  5. Tamang JP et al. (2016). Fermented foods in a global age: East meets West. Compr Rev Food Sci Food Saf. — PubMed
  6. Park KY et al. (2014). Health benefits of kimchi (Korean fermented vegetables) as a probiotic food. J Med Food. — PubMed
  7. Bourrie BC et al. (2016). The microbiota and health promoting characteristics of the fermented beverage kefir. Front Microbiol. — PubMed
  8. Geleijnse JM et al. (2004). Dietary intake of menaquinone is associated with a reduced risk of coronary heart disease: the Rotterdam Study. J Nutr. — PubMed
  9. Cook J. (1776). Journal of the second voyage of HMS Resolution (historical record of sauerkraut antiscorbutic use) — PubMed
  10. Metchnikoff E (1907). The Prolongation of Life: Optimistic Studies. (foundational text on yogurt and longevity) — PubMed
  11. UNESCO (2013). Inscription of kimjang, making and sharing kimchi in the Republic of Korea, on the Representative List of the Intangible Cultural Heritage of Humanity — PubMed
  12. Selhub EM et al. (2014). Fermented foods, microbiota, and mental health: ancient practice meets nutritional psychiatry. J Physiol Anthropol. — PubMed

PubMed Topic Searches

Back to Table of Contents

Connections

Back to Table of Contents