Healthy Eating training materials for semi-illiterate women-to-women groups

Does anyone know of existing training materials aimed at helping semi-illiterate women to understand how to eat healthier within their very low household budget (e.g. that could be adapted for street vendors in a slum area of Accra, Ghana). The main aims  of the training materials should be to: 1. help prevent obesity and type 2 diabetes in women, who are members of "bottom-up" style women-to-women participatory groups, and 2. help prevent stunting and anaemia in their families. Many thanks