PIP: A comparative study was conducted to assess the biochemical effects of a low-estrogen combined OC (oral contraceptive). The focus of the study was on possible biochemical effects indicative of altered nutritional status. Both low and high income women on pills were compared with others not on pills. The groups were further divided according to the duration of OC usage. Blood hemoglobin, serum Vitamin A, plasma ascorbic acid, folic acid, riboflavin, and aspartate transaminase levels were measured. Higher income women had better measures on all the indices than the low income women, indicating a better initial nutritional status. Deficiencies increased with duration of use. Results of the study show that OCs reduce the vitamin nutritional level in women. For poor women on OCs, special nutrition intervention programs should be instituted.