Access to critical infrastructure is vital for boosting agricultural production, enhancing access to safe nutritious foods, especially in the rural areas of the developing world where hunger and malnutrion remain rife. While several studies have examined the welfare effects of agricultural production infrastructure, little is known about the contribution of post-production infrastructure to improved nutritional outcomes, especially in Ghana. Therefore, this study investigates the effect of groundnut processing facilities on household and women’s dietary diversity in northern Ghana. Based on a random sample of 850 women engaged in the groundnut value chain as primary producers, processors or both, the results show that access to mechanized shelling, roasting and grinding machines is limited, with less than two-thirds of the women living in communities where any of these facilities existed. Access to and intake of nutritious diets is also poor, with only 45.2% of reproductive age women achieving the minimum dietary diversity for micronutrient adequacy. Using the inverse probability weighting regression adjustment (IPWRA) estimator, the treatment effects show that groundnut processing is significantly associated with improved intake of diverse diets at individual and household levels. While no evidence of direct infrastructure–nutrition linkage is established, the findings indicate that groundnut processing facilities offered vital opportunities for women to add value to their groundnuts, which indirectly facilitates better access to nutritious diets at individual and household levels among female groundnut processors relative to primary producers.
