Seasonal variability of women’s dietary diversity and food provisioning: a cohort study in rural Burkina Faso
Abstract Objective: To investigate the seasonal variations of women’s dietary diversity (WDD) (items consumed and food supply) and its linkages with agriculture, market and wild resources. Design: A cohort of 300 women was followed-up over a year to investigate WDD and food sources (production, purchase or foraging). Monthly qualitative 24h-recalls allowed computing WDD Scores from a standard 10-food groups (FG) classification (WDDS-10). Associations between farm/women’s characteristics and WDDS-10 were investigated using multivariate mixed models including interaction terms factor*months. Setting: Tuy province, Burkina Faso Participants: 300 women of reproductive age Results: Both dietary diversity and food sources were seasonal. The mean WDDS-10 was relatively stable from August to January (ranging from 3.1 to 3.5 FG) when farm production predominated. The WDDS-10 gradually increased from February, concomitantly with an increase in food purchases (onions, tomatoes, mangoes), and reached its highest levels (>4 FG) from March to June, when food purchases were still relatively high and when more women consumed foraged fruits (shea plums, wild grapes). Women living on farms owning >3 plough oxen and different animal species had significantly higher WDDS-10 than others (+0.28 and +0.35 FG, respectively). Women who practiced off-farm activities also had higher WDDS-10 than those who did not (+0.21 FG, p<0.05). Other factors, e.g. the number of foraged edible species, provided advantages in terms of dietary diversity only during certain seasons (October-January, P for interaction<0.01). Conclusions: Diversifying women’s diets throughout the year requires complementary interventions aimed at diversifying production, promoting foraging and increasing income-generating activities to enable food purchasing.