The objective of this article is to assess changes in diet composition, def
ined in terms of macronutrient intake and types of foods consumed, in pregn
ancy in poor urban women in Colombia. The subjects were 20 pregnant and 20
matched nonpregnant, nonlactating (NPNL) women 19 to 35 years of age. The p
regnant women were studied in three measurement rounds at 14.0 +/- 3.6, 27
+/- 2.2, and 35 +/- 1.7 weeks gestation, and the NPNL women in three measur
ement rounds approximately 3 months apart. Dietary intake was obtained from
estimated food records and macronutrient composition from published source
s. Types of foods consumed were aggregated into 16 groups: alcohol; breads;
candy; coffee, chocolate; juices; fruit; legumes; meat, fish, offal; dairy
; vegetable dishes; other; rice, pasta; tubers, plantains; salads; soft dri
nks; and soups. Macronutrient intakes showed nonsignificant increases in pr
egnancy. There were no significant differences between pregnant and NPNL wo
men, except for carbohydrate intake in late pregnancy (P = 0.03). Carbohydr
ate, fat, and protein provided 74%, 17%, and 12% of dietary energy, respect
ively, in pregnant women at baseline, and did not change significantly. Exc
ept for a decrease in fruits, the types of foods consumed did not change si
gnificantly in pregnancy. There were no between-group differences in types
of foods consumed except for the greater number of fruits consumed by pregn
ant women at baseline (P = 0.004). We conclude that in this population ther
e were no changes in diet composition in pregnancy, except for an increase
in fruit consumption in Round 1. (C) 1999 Wiley-Liss, Inc.