The way in which women accommodate for their increased nutritional needs during the lactation period is poorly investigated. In a crosssectional study involving 220 lactating women (LW), equally distributed in economic quintiles (Q2, Q3, Q4), we investigated whether habitual dietary intake of LW differed from that of 200 pre-pregnant women (PPW) studied using the same methodology. Differences in dietary intake and nutrition sufficiency according to economic status were also investigated. Dietary intake data were collected using 2 × 24-h dietary recalls and FFQ. Energy, protein, Fe, Ca, Zn and vitamins A and C intakes were calculated utilising local food composition tables and were compared against Indonesian recommendations for adequacy. Energy and protein intakes <70 % of the recommendation and Fe, Ca, Zn and vitamins A and C intakes <77 % of the recommendation were considered insufficient. Except for Zn, dietary intakes of all studied nutrients were higher in LW compared with PPW. However, for all studied nutrients, dietary intake was insufficient in >25 % of LW. For Q2-LW, this proportion was >50 %, except for protein. LW across all studied economic quintiles approximately doubled their vegetable intake, and 71 % of LW indicated a belief that this enhances lactation performance. Biochemical status parameters were analysed in a subset of forty-five women. Anaemia as well as Fe, Zn and Se deficiencies were prevalent among LW, supporting the nutrient intake deficiency data. Despite increasing intakes in LW compared with PPW, habitual diets in the study area do not provide for daily nutrient requirements in substantial proportions for both LW and PPW across all investigated economic groups.
Key words: Lactating women: Food intakes: Vegetable intakes: Micronutrient intakesThe most vulnerable groups for malnutrition worldwide are infants, young children and pregnant and lactating women (LW). Among these groups, actual knowledge about nutritional status and potential nutrient insufficiencies in LW is hardly available. Although the literature on relevant physiological adjustments and additional nutritional requirements is extensive (1,2) , the number of dietary assessment studies in LW is limited (3)(4)(5)(6) . Thus, the question on whether and how women change their diet upon lactation is far from being answered and is surely also dependent on culture and socio-economic status.The constant denominator for the actual increased nutritional requirements for LW is the need to produce adequate amounts of breast milk. A variable contribution will be recovery from and replenishment of exhausted nutrient stores after pregnancy and delivery, or an intentional wish to decrease fat stores accumulated during pregnancy (7) . Owing to this variable contribution, several recommendation bodies have made different weightings depending on local or regional factors, and thus arrived at different quantifications of the additional nutrient requirements during lactation.In this contribution, we specifically report on the dietary ...