Infant feeding guidelines emphasize that breast milk is the best nutrition for infants.

During the COVID-19 pandemic, policy makers and practitioners must learn from mistakes made during the HIV pandemic, when breastfeeding was undermined through isolating infants from their mothers, and formula feeding resulted in more infant deaths than the disease.

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.

Exposure to factors related to pregnant and recently delivered women’s households and health services could optimize maternal nutrition practices and the delivery of maternal nutrition interventions.

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.

This article demonstrated that recipients in the Phase I intensive intervention, which provided interpersonal counseling, community mobilization, and mass media campaigns, mobilized additional resources to improve diets.