The Minimum Dietary Diversity for Women (MDD-W) indicator based on a 10-food group women dietary diversity score (WDDS-10) has been validated to assess dietary quality in nonpregnant women. This study aimed to 1) compare the adequacy of micronutrient intakes between pregnant adolescent girls and women, 2) examine the performance of WDDS-10 in predicting the mean probability of adequacy (MPA), and 3) assess how well the MDD-W cutoff of 5 groups performed in pregnant adolescent girls and women. The study found that the WDDS-10 predicted MPA equally well for pregnant adolescent girls and women at population level, but that the MDD-W indicator performed poorly in classifying individuals with MPA >0.6. of 11 micronutrients.