PMID: 9537617Apr 16, 1998Paper

Suboptimal zinc status in pregnant Malawian women: its association with low intakes of poorly available zinc, frequent reproductive cycling, and malaria

The American Journal of Clinical Nutrition
R S Gibson, J M Huddle

Abstract

A study of 152 rural Malawian women aged 23.2+/-5.5 y (x+/-SD) at 24 wk gestation included measurements of biochemical indexes of zinc (plasma and hair), protein (serum albumin), and infection (serum C-reactive protein, white blood cell count, and malaria), and dietary intakes (via three interactive 24-h dietary recalls). Data on health, demographic and socioeconomic status, family characteristics, reproductive history, and anthropometry were also collected. The study revealed a high prevalence of suboptimal zinc status: 36% of the women had low plasma and 46% had low hair zinc values. Median daily intake of zinc (9.0 mg) was low and poorly available: 61% was provided by cereals and 20% by flesh foods. Median intake of animal protein was only 5.6 g/d, and phytate intakes were high (1.4 g/d). Women consuming diets with phytate-zinc ratios > 17 (the median) had lower hair zinc concentrations (1.6 compared with 1.8 micromol/g, P < 0.03), were older (24 compared with 20 y, P < 0.02), and had a higher number of pregnancies (3 compared with 2, P < 0.02) than those consuming diets with a phytate-zinc ratio < 17. Frequent reproductive cycling was related to zinc status; hair zinc was higher for a prima- than for a multigravida (2.0 com...Continue Reading

Citations

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