Tn. Ncube et al., Supplementing lactating women with pureed papaya and grated carrots improved vitamin A status in a placebo-controlled trial, J NUTR, 131(5), 2001, pp. 1497-1502
Doubts have been raised about the effectiveness of carotene-containing food
s in improving the vitamin A status of populations at risk. We investigated
the effect of papaya and carrots on the vitamin A status of lactating wome
n with 2- to 12-mo-old infants in Zimbabwe. The women were randomly assigne
d to three supplementation groups and a placebo group, and received 6 mg of
beta -carotene capsules, 650 g pureed papaya, 100 g grated carrots or a pl
acebo, daily for 60 d. All groups were given a meal containing 10 g of vege
table oil daily. Serum retinol, relative dose response, serum ferritin, hem
oglobin and C-reactive protein were measured before and after the supplemen
tation period. Mean serum retinol increased significantly after supplementa
tion in the p-carotene group (P < 0.001), the papaya group (P < 0.001) and
the carrot group (P < 0.001), but not in the placebo group (P > 0.05). The
relative dose response decreased significantly (P < 0.05) in the beta -caro
tene and papaya groups, but not in the carrot or placebo groups (P > 0.05).
There was an increase in mean serum ferritin in ail groups but the increas
e did not differ among groups. The hemoglobin increases in the beta -carote
ne and papaya groups were greater than that in the placebo group. We conclu
de that pureed papaya and grated carrots can improve the Vitamin A and iron
nutriture of lactating women. These findings reinforce the importance of p
lant food-based approaches in the control of vitamin A deficiency in low in
come countries.