Ancient Diets: Hunter-Gatherers Ate Diverse Plants & Fish, Not Just Meat

Reconstructing the diets of prehistoric Europeans isn’t about recreating a perfectly preserved recipe—it’s about piecing together fragmented evidence from ancient cooking residues to understand how early populations utilized available resources. A recent study, published in PLoS ONE in 2026, details how researchers are using a combination of archaeological shard analysis and experimental cooking to gain insights into the culinary habits of hunter-gatherer-fishers across Europe. The operate highlights a surprisingly diverse range of plant and animal foods consumed, challenging the notion that these populations relied solely on hunting and fishing.

Analyzing Ancient Cooking Traces

The research team analyzed organic residues preserved in pottery shards from several regions: the Don River basin in Russia, the Upper Volga and Dnieper-Dvina regions, and the Baltic region, as well as a site in Denmark. These shards, remnants of cooking vessels, act as time capsules, trapping microscopic traces of the foods prepared within them. The analysis revealed a varied palette of ingredients. Across all sites, evidence pointed to the consumption of wild grasses and legumes, fruits and berries, green vegetables, and roots and tubers. Specifically, shards from the Don River basin showed traces of wild legumes (potentially clover) and grasses, alongside bran and barley. This suggests a reliance on locally available grains and pulses.

However, regional variations were too apparent. Shards from the Upper Volga and Dnieper-Dvina regions contained more guelder rose berries and smaller-seeded plants from the Amaranthaceae family. The Baltic region showed a higher prevalence of freshwater fish, supplemented with berries, sea beetroot, flowering rush, beets, and sea club-rush tubers. Interestingly, a site in Denmark yielded traces of dairy products, indicating interaction with, or adoption of practices from, nearby farming communities. This finding underscores the complex interplay between hunter-gatherer and agricultural lifestyles during this period.

Experimental Archaeology: Replicating Prehistoric Cooking

To validate their findings and understand how these ingredients were prepared, the researchers conducted experimental archaeology. They gathered guelder rose berries from southern England and froze them for preservation, mirroring seasonal harvesting practices. They then boiled the berries with water in replica pottery vessels, sometimes adding freshwater carp. Crucially, they varied the distance of the vessels from the heat source – open flames versus glowing embers – to simulate different cooking techniques. By analyzing the residues from these experimental cooks, they could compare them to the samples taken from the prehistoric shards, helping to identify the most likely cooking methods used by ancient populations.

The experimental work revealed that specific food combinations were common in certain regions. For example, the study found a tendency to combine Viburnum (guelder rose) berries with freshwater fish in the Upper Volga and Baltic regions. In the Don River basin, fish was often accompanied by wild grasses and legumes, while other sites favored fish paired with green vegetables. This demonstrates that hunter-gatherer-fishers weren’t simply subsisting on whatever was available. they were actively processing and combining ingredients in deliberate ways.

The Role of the Don River Basin

The Don River, the fifth-longest river in Europe, played a significant role in the lives of these early populations. As detailed by Wikipedia, the river served as a vital trade route, even connecting to the Byzantine Empire. The archaeological evidence from the Don River basin suggests a diet centered around fish and locally sourced grains and legumes. This likely reflects the river’s abundance of fish and the availability of wild plants in the surrounding steppes. The basin’s location, situated between the Dnieper, Volga, and Oka basins, also suggests a degree of cultural exchange and resource access.

Beyond Fish: A Diverse Plant-Based Diet

A key takeaway from the study is the significant role of plants in the diets of these prehistoric populations. The researchers emphasize that hunter-gatherer-fishers were “actively processing and consuming a wide variety of plants.” This challenges the traditional view of these groups as primarily meat-eaters. The consumption of berries, roots, tubers, and various greens indicates a sophisticated understanding of the local flora and the ability to identify and utilize edible plants. The use of Amaranthaceae plants, for instance, suggests knowledge of seed-bearing plants that could be processed for consumption.

Understanding Amaranthaceae

The Amaranthaceae family is a diverse group of plants that includes beets, spinach, and quinoa. According to Britannica, the Don River region supported a variety of plant life, making it plausible that these plants were readily available to prehistoric populations. The presence of these plants in cooking residues suggests that early Europeans were capable of processing and consuming these seeds, potentially as a source of protein and carbohydrates.

Limitations and Future Research

While the study provides valuable insights, it’s important to acknowledge its limitations. The analysis of organic residues is inherently challenging, and the preservation of these compounds can vary significantly depending on environmental conditions. The identification of specific plant species can also be difficult, relying on microscopic analysis of seed fragments and other plant remains. The experimental cooking is a simplification of prehistoric cooking practices, and it’s impossible to perfectly replicate the conditions and techniques used by ancient populations.

Future research will likely focus on expanding the geographic scope of the study, analyzing more pottery shards from different regions, and refining the techniques for identifying organic residues. Further investigation into the processing methods used for plants, such as grinding or fermentation, could also provide valuable insights. Combining archaeological evidence with genetic studies of ancient populations could help to understand how dietary habits evolved over time. The Don Basin, as a historically significant region, will likely remain a key focus for future archaeological investigations, as noted by GRID Geneva.

The ongoing work to reconstruct prehistoric diets is a testament to the power of interdisciplinary research, combining archaeology, chemistry, and experimental science to shed light on the lives of our ancestors. It’s a reminder that even the most seemingly simple aspects of human existence, like what we eat, are shaped by complex interactions between culture, environment, and technology.