Food systems must become more sustainable and equitable, a transformation which requires the transdisciplinary co-production of knowledge. We present a framework of food sustainability that was co-created by academic and non-academic actors and comprises five dimensions: food security, right to food, environmental performance, poverty and inequality, and social-ecological resilience. For each dimension, an interdisciplinary research team—together with actors from different food systems—defined key indicators and empirically applied them to six case studies in Kenya and Bolivia. Food sustainability scores were analysed for the food systems as a whole, for the five dimensions, and for food system activities. We then identified the indicators with the greatest influence on sustainability scores. While all food systems displayed strengths and weaknesses, local and agroecological food systems scored comparatively highly across all dimensions. Agro-industrial food systems scored lowest in environmental performance and food security, while their resilience scores were medium to high. The lowest-scoring dimensions were right to food, poverty and inequality, with particularly low scores obtained for the indicators women’s access to land and credit, agrobiodiversity, local food traditions, social protection, and remedies for violations of the right to food. This qualifies them as key levers for policy interventions towards food sustainability.

Beef production in Kenya is the forte of pastoralists and large-scale ranches in the Arid and Semi-Arid areas. Cross sectional data was collected from 67 pastoralists and seven large-scale ranches, selected through multistage stratified sampling. Comparative descriptive statistics, gross margin analysis and analysis of production constraints were done with the objective of assessing the pastoralists and large-scale ranches direct economic gains, constraints to production and potential for upgrading. Gross margin analysis showed that beef production is profitable for both pastoralists and large-scale ranches. However, large-scale ranches had much higher gross margins of up to six times more. There were significant differences in the live weight of cattle, prices and livestock selling channels and cost of production. Drought, livestock diseases, invasive plant species, lack of water and human-wildlife conflict were among factors limiting productivity of pastoralists. The difference in gross margins indicates existing potential for pastoralists to improve their earnings through a combination of product, process, and functional upgrading. Addressing key constraints to production can contribute to better gains and strengthen coexistence between pastoralists and large-scale ranches. Strategies and programmes to enhance cattle fattening, provision of livestock extension services, affordable feed inputs and collaboration between the two production systems should be considered in upgrading.

Smallholder farmers and pastoralists produce the largest proportion of food consumed in sub-Saharan Africa. However, they remain among the food insecure populations. This paper explores the food (in)security among smallholder farmers and pastoralists using a sample of 175 households in three agro-food value chains of wheat, dairy, and beef in the north-west Mt. Kenya region. The study seeks to answer if a farmer’s participation in a particular agro-food value chain determines his/her food security situation. We use the Household Food Insecurity Access Scale (HFIAS) and two Poisson regression models, parsimonious and full, to assess the household food security status and determinants of food security among the smallholder farmers and pastoralists. The results show that 61% of the households were either mildly, moderately, or severely food insecure. Households in the beef value chain experienced relatively higher incidences of food insecurity compared to households in the wheat and dairy value chains. The HFIAS scores revealed a wide gap between households with minimum and maximum score. Household size, income and income-related variables (ability to save and borrow to meet family needs), transport assets, membership in farmers’ associations, and household energy were significant in determining household food security, while access to credit and to extension services was not. Strategies that focus on boosting smallholder farmers’ incomes, building strong and resilient farmers associations to improve inclusive and equitable value chains have the potential to get smallholder farmers out of recurrent food insecurity.