Reconstructing diet in Napoleon's Grand Army using stable carbon and nitrogen isotope analysis

Area of Science:

• Paleodietary research
• Stable isotope analysis
• Bioarchaeology

Background:

• Historical records offer limited insight into the diets of Napoleon's Grand Army during the 1812 Russian Campaign.
• Reconstructing the diets of this multiethnic military force is crucial for understanding their health and survival.

Observation:

• Stable carbon and nitrogen isotope ratios were analyzed from the femoral bone collagen of 78 individuals.
• These individuals were identified as soldiers and camp followers from the 1812 Russian Campaign, excavated from a mass gravesite in Vilnius, Lithuania.

Findings:

• Isotope analysis revealed a broad spectrum of dietary habits, with carbon isotope ratios indicating diets ranging from predominantly C3 to C4 plant consumption.
• Nitrogen isotope ratios showed significant variation in animal protein intake, including terrestrial, freshwater, and marine sources.
• The results highlight considerable dietary diversity within this multiethnic and socially stratified military population.

Implications:

• The findings demonstrate the exceptional dietary variability among soldiers and camp followers in Napoleon's army compared to other European populations.
• This research provides a detailed paleodietary reconstruction, offering insights into the nutritional strategies and potential health impacts on Napoleon's troops during the campaign.
• Stable isotope analysis serves as a powerful tool for understanding historical diets and the impact of military campaigns on population nutrition.