Nutrient intakes during pregnancy, lactation and after the cessation of lactation in a group of Australian women

Abstract

1. The dietary intakes of twenty-six women were investigated during their first pregnancy, at 6–8 weeks post-partum and at 6 months post-partum or after the cessation of breast-feeding.2. Of this group, sixteen subjects were apparently breast-feeding satisfactorily at 6–8 weeks post-partum, as judged by the average weekly weight gain of their infants (202 g).3. Changes in food consumption and nutrient intake were studied, together with changes in body-weight and activity. The subjects did not consume more calories during pregnancy. It appeared that this was a result of dietary advice received plus some curtailment of activity during pregnancy. There was an increase in intake of nutrients during lactation.4. Intakes of iron during the third trimester of pregnancy and of ascorbic acid during lactation were 1.9 ± 0.3 mg (16%) and 26 ± 7.3 mg (26%) respectively below the allowances recommended by the (Australian) National Health and Medical Research Council. The significance of these intakes is discussed.5. No difference was detected in the diets during pregnancy of women who breast-fed compared with those who did not.