Scientific Analysis Reveals Plant-Based Diet of Ancient Roman Gladiators

Contrary to popular depictions in modern media, Roman gladiators primarily consumed a plant-based diet rather than meat-heavy meals, according to scientific evidence. Research conducted by experts from the University of Vienna analyzed bones from a gladiator cemetery discovered in 1993 in Ephesus, located in modern-day Turkey. Isotopic analysis of these remains revealed high strontium-to-calcium ratios, indicating a diet rich in grains and legumes. These fighters were historically called hordearii, meaning barley eaters, reflecting their consumption of barley—a grain typically associated with animals and the poor—along with chickpeas, lentils, and broad beans. This diet provided essential energy for training and helped gladiators gain subcutaneous fat, which offered protection during combat by preventing deep wounds. Gladiators lived and trained in facilities like the Ludus Magnus, established by Emperor Domitian in the late first century AD near Rome's Colosseum and later expanded by Emperor Trajan. There, they followed strict routines under the supervision of a lanista, who managed their care as valuable investments. Historical records, including Pliny the Elder's Naturalis Historia, mention a recovery drink made from charred plant ash mixed with water or vinegar, believed to aid bone strength and healing. The gladiator diet and training schools declined as the Roman Empire faced challenges in the 5th century, with games banned in Rome by 404 CE.