The soil and vegetables in community gardens located in Aubervilliers show moderate levels of contamination with trace metals, which could pose health risks under a "worst-case" scenario simulating a high rate of self-consumption. A survey on vegetable production over the past 12 months and gardeners’ dietary habits was conducted to estimate the rate of self-consumption of garden produce among allotment garden users, identify factors promoting high self-consumption, and gain a better understanding of self-consumption practices in urban settings. The study, conducted among 58 gardeners, highlights the significant role that vegetable produce plays in the diets of urban gardeners. At the height of the harvest season, the high median rate of self-consumption (86%), the significant proportion of gardeners (57%) with a self-consumption rate of at least 80%, and the existence of individuals who are entirely self-sufficient suggest behaviors more commonly found in rural areas. Three factors linked to high self-consumption (80% or higher) were identified: the age of the vegetable garden, the time spent in the garden during winter, and the number of species grown. (R.A.)