In this paper, we ask: How does social isolation shape dietary patterns among older adults? Specifically, we investigate individual and contextual factors on the daily regularity and frequency of meals among adults who are aged 60 and more, retired, and living in Paris and the inner suburbs. The analysis yields three takeaways: 1. Meal frequency may be a valid indicator of nutrition risks among older adults in Paris and the inner suburbs, while meal regularity may be not. 2. Studying dietary patterns among older adults needs handling diverse measures of social isolation, especially differentiating objective and subjective factors. 3. Food access has insignificant effects on meal patterns among older adults in Paris and the inner suburbs.