Anthropologists have completed a comprehensive genomic analysis of 8,500-year-old remains found near Lake Ladoga, identifying the first known genetic signature of adaptation to high-lignin forest diets. The study reveals that these Mesolithic hunter-gatherers had evolved specialized gut enzyme variants capable of processing complex carbohydrates found in tree inner-bark and certain forest tubers, which were crucial for survival during long boreal winters.
The research, published in the European Journal of Anthropology, suggests that this 'Forest-Diet' signature was a key evolutionary hurdle for the permanent settlement of Northern Europe. By comparing these ancient genomes to modern populations, researchers traced how these adaptations were largely lost after the Neolithic transition to farming, providing a rare glimpse into the specialized metabolic history of Europe’s last wild foragers.