Pith Moromo is Luo for “enough to eat.” Pith Moromo 1 was designed as a formative, qualitative study in which in-depth interviews were conducted with pregnant and lactating women, household members, and key informants about the perceived causes and consequences of food insecurity during pregnancy and lactation. These interviews were used to inform Pith Moromo 2, a cohort study following 370 pregnant women of mixed HIV status (half HIV+, half HIV-) from their first ANC visit until 9 months post-partum.