Considered to be a chronic recidivist condition, obesity places significant burdens on the society. The search for appropriate interventions remains challenging. Research suggests individuals’ environments should be considered when addressing eating behaviours. Nomothetic accounts of the dieting experiences of eight self-selected British Jews within a commercially run, community-based weight-management programme adapted to Jewish participants’ cultural needs were explored using interpretative phenomenological analysis. Four themes were identified: ‘Me, myself and I’, ‘behaviour change’, ‘structural framework’ and ‘social interaction’. Emergent aspects were social support and structural flexibility to motivate participants to initiate and sustain behaviour change. Implications for future weight-loss interventions are discussed.