Iron Deficiency and Anemia
Conditions
Keywords
iron, anemia, bio-fortification, children, India
Brief summary
The objective of this study was to evaluate the efficacy of iron bio-fortified pearl millet in improving iron status in adolescents in India.
Detailed description
An estimated 1.6 billion people worldwide are anemic, and iron deficiency (ID) is the leading cause of anemia. Its prevalence is highest in resource-limited settings, and among children and women of reproductive age. Even mild ID can adversely impact cognitive performance, behavior, and physical growth of children, and physical work and cognitive performance in adults. Interventions to target micronutrient malnutrition such as dietary diversification, micronutrient supplementation, and food fortification have reduced ID, but have not been universally successful. Biofortification, the process of increasing the concentration and bioavailability of essential nutrients in staple crops by traditional plant breeding, is a sustainable and cost-effective approach to combat micronutrient deficiencies. Other forms of bio-fortification (agronomic management and genetic modification) are also feasible. Rice, maize, wheat, pearl millet, sweet potato, beans, and cassava have been the main target crops of bio-fortification. Pearl millet (PM) is a primary staple food in India, particularly in the states of Rajasthan, Gujarat and Maharashtra. The high pearl millet consumption and availability of a recently released pearl millet variety (ICTP 8203-Fe) with significantly greater iron content provided an opportunity to evaluate its efficacy on improving iron status in human populations. We hypothesized that daily consumption of iron bio-fortified pearl millet (Fe-PM) would improve iron status in six months. We conducted a randomized efficacy trial of iron bio-fortified pearl millet in improving iron status in adolescents in Maharashtra, India. The aims of this study are: * To determine if the iron status of adolescent boys and girls in rural Maharashtra is improved by consuming high-iron bio-fortified PM * To determine if adolescents in rural Maharashtra consuming high-iron bio-fortified PM exhibit higher physical performance and energetic work efficiency compared to adolescent boys and girls consuming low-iron pearl millet. * To determine if adolescents in rural Maharashtra consuming high-iron bio-fortified PM exhibit higher cognitive and perceptual functioning, as well as differences in patterns of cortical activation' when compared to children consuming low-iron pearl millet. The principal hypotheses to be tested are that in an intervention study using iron bio-fortified PM with the highest possible levels of iron content in comparison to a low-iron control: * Iron bio-fortified PM consumed as a dietary iron intervention will improve the iron status of iron deficient adolescents * Iron bio-fortified PM consumed as a dietary iron intervention will improve the physical performance of iron deficient adolescents * Iron bio-fortified PM as an iron intervention will improve the cognitive and perceptual functioning of iron deficient adolescents The long-term goal of this study is to show that iron bio-fortification of PM is an efficacious and potentially effective strategy for addressing iron deficiency in developing countries.
Interventions
OTHERIron bio-fortified pearl millet
Pearl millet variety ICTP8203-Fe (82 mg/kg iron content) prepared as a traditional flatbread (bhakri)
OTHERControl pearl millet
Conventional pearl millet: variety DG9444 (22 mg/kg iron content) and JKBH778 (52 mg/kg iron content), prepared as a traditional flatbread (bhakri)
Sponsors
SNDT Women's University
Cornell University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
12 Years to 16 Years
Healthy volunteers
Yes
Inclusion criteria
* Participants are individuals aged 12 to 16 years * Attending boarding schools in Ahmednagar district, Maharashtra, India
Exclusion criteria
* Severe anemia (Hemoglobin\<8.5g/dL) * Taking iron supplements or medications that could interfere with iron absorption * Chronic illnesses
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in iron status | 6 months | Hemoglobin, serum ferritin, serum transferrin receptor, body iron |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Differences in cognitive function | 6 months | Five tests of perceptual and cognitive performance: i) the simple reaction time task; ii) the go-nogo task; iii) the attentional network task; iv) the composite face task; and v) the cued recognition memory task. Approximately 1/2 of participants performed these tasks with concurrent recording of electroencephelography (EEG). |
| Differences in physical performance | 6 months | i) estimation of maximal oxygen consumption, ii) determination of energy expenditure and work efficiency at modest levels of exertion, and iii) determination of time spent at 3 levels of physical exertion while performing normal daily activities. |
Countries
India
Outcome results
None listed