Dietary preferences in the context of intra-couple dynamics: Relationship types within the German NutriAct family cohort.

To promote healthy diets in older age, a comprehensive understanding of factors influencing dietary behaviour and underlying preferences is essential. Romantic relationships are focal socialisation contexts, in which diet-related preferences and practices are dynamically negotiated. Our aim was to reconstruct intra-couple dynamics shaping dietary preferences and comparatively analyse relationship types among older couples.