This paper provides an evolutionary perspective on why modern complementary food diets are often inadequate, asserting that inadequate diets and nutritional deficiencies have likely been a part of the human condition since the agricultural revolution.

This article demonstrates that exposure to interventions matters for impact, but the combination of behavior change interventions and number of interpersonal counseling contacts required to support behavior change in infant and young child feeding are context-specific.

Seven posters are placed in health facilities to reinforce messages received during counseling.