Furthermore, higher and more diverse food consumption (see Chapter 2) was accompanied by a range of complementary interventions such as nutritional supplements and health care that also contributed to the success of the programme (Ruel and Alderman, 2013; Skoufias, 2005). For example, evidence from randomized controlled trials in China, Jamaica and Kenya, found that, over a 19-month period, children fed at school gained an average of 0.39 kg more than those who did not receive supplementary feeding (Kristjansson etal., There is also evidence showing that iron-rich school meals can improve iron nutrition, especially for adolescent girls (Ruel and Alderman, 2013). In Uganda, according to Adelman etal. ( Including certain types of foods has also enhanced the effectiveness of school-feeding programmes. For example, including biofortified orange-fleshed sweet potato, which is high in betacarotene, into a South African school-feeding programme raised levels of vitamin A intake (van Jaarsveld etal.,