The WinFood Intervention Study: the effect of improved complementary foods on nutrition and health among infants in Western Kenya

ISRCTN ISRCTN30012997
DOI https://doi.org/10.1186/ISRCTN30012997
Secondary identifying numbers N/A
Submission date
30/03/2012
Registration date
11/05/2012
Last edited
17/02/2023
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Nutritional, Metabolic, Endocrine
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English Summary

Background and study aims:
The World Health Organization recommends that infants be exclusively breastfed with no other food or liquid given until the age of 6 months. At 6 months, other foods need to be introduced to complement breast milk. In developing countries, including Kenya, such foods introduced at the age of 6 months or earlier mainly comprise thin porridges made exclusively from plant based foodstuffs. It is likely that the sharp growth faltering observed from 6 months onto 2 years and beyond is associated with consumption of foods that provide inadequate energy and sub-optimal amounts of essential nutrients such as iron and zinc. The Winfood Project is a collaboration between University of Copenhagen and University of Nairobi aiming to improve the quality of complementary foods fed to infants and young children in Kenya so as to improve growth and health via utilisation of often neglected traditional foodstuffs such as small fish, edible insects and grains and processing them in a way that nutrient and energy density is enhanced.
The trial aims to test the effect of three foods:
Winfood Classic – with maize, grain amaranth, edible termites and fish
Winfood Lite – maize, grain amaranth and premix of vitamins and minerals
Corn soy blend plus (CSB+) with mineral and vitamin premix
The effect on growth, lean and body fat composition, gross psychomotor milestones, zinc and iron status of Kenyan infants and young children supplemented for 9 months from 6-15 months of age will be measured.

Who can participate?
Normal infants living in rural Western Kenya - all non-malnourished, non-severely anaemic 6-month old infants. In total 500 infants will take part for 9 months.

What does the study involve?
Six-month old infants are randomly allocated to one of the three study foods, listed above. In order to monitor growth, weight, length, head circumference, and mid upper arm circumferences are measured monthly. Haemoglobin, is measured by finger prick and venous blood is drawn to measure iron and zinc status at 6 months and 15 months of age. In order to determine lean mass and body fat composition in the infants, saliva samples are drawn and analysed.

What are the possible benefits and risks of participating?
The benefits include receiving food rations for 9 months. Additionally, we expect improved growth and health among infants receiving food supplementation. There may be discomfort to children due to pain during drawing of blood. Otherwise there are no direct risks that may be associated with this study.

Where is the study run from?
This study is based in three rural health centres in Mumias District, Western Province, Kenya.

When is study starting and how long is it expected to run for?
The study commenced in January 2012 and is expected to run until January 2013.

Who is funding the study?
Danish International Development Agency (DANIDA)

Who is the main contact?
Prof Henrik Friis
hfr@life.ku.dk 

Contact information

Prof Henrik Friis
Scientific

University of Copenhagen
Rolighedsvej 30
Frederiksberg
1958
Denmark

Email hfr@life.ku.dk

Study information

Study designRandomised double-blind study
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Other
Study typeQuality of life
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific titleThe WinFood Intervention Study: randomised controlled trial of the effect of improved complementary foods on infant growth, body composition and gross motor development in Western Kenya
Study acronymWinFood
Study hypothesisImproved complementary foods based on locally available traditional ingredients will improve the nutritional and health status of Kenyan infants
Ethics approval(s)Kenyatta National Hospital and University of Nairobi Ethics Committee, Kenya 07 April 2011
ConditionInfants at risk of undernutrition
InterventionThree different pre-cooked complementary food supplements given as a porridge daily from 6-15 months of age (6-8 months: 50 g, 9-12 months: 75 g, 13-15 months: 125 g)
1. WinFood CF: amaranth grain, maize and one highly-nutritious fish and one edible termite species
2. WinFood Light: amaranth grain, maize plus vitamin-mineral premix
3. Corn-Soy-Blend Plus (CSB+)

Food class (1 & 2) are the experimental and food class (3) is the control intervention
Intervention typeOther
Primary outcome measureChanges in linear growth (stunting), fat-free body mass (deuterium dilution), iron status (serum ferritin and transferrin receptors) from baseline (age 6 months) until the end of the 9 month intervention
Secondary outcome measuresChanges in:
1. Physical activity (using an accelerometer, actigraph)
2. Motor milestones (questionnaire, clinic visits)
3. Morbidity
4. Haemoglobin concentration (using Haemocue)
5. Serum concentrations of acute phase proteins [C-reactive protein (CRP) and a-acid glycoprotein(AGP)], insulin-like growth factor (IGF)-1 and zinc
6. Whole blood fatty acid composition

Measured from baseline (age 6 months) until the end of the 9 month intervention
Overall study start date15/01/2012
Overall study end date30/12/2012

Eligibility

Participant type(s)Patient
Age groupNeonate
SexBoth
Target number of participants450
Total final enrolment499
Participant inclusion criteriaChildren who are 6 months old and have a weight-for-height z-score > -3
Participant exclusion criteria1. Weight-for-height z-score < -3
2. Bilateral pitting oedema
3. Haemoglobin (Hb) < 80 g/L
4. Clinical signs of vitamin A deficiency (xerosis or Bitot spots). These children will be referred for treatment
Recruitment start date15/01/2012
Recruitment end date30/12/2012

Locations

Countries of recruitment

  • Denmark
  • Kenya

Study participating centre

University of Copenhagen
Frederiksberg
1958
Denmark

Sponsor information

University of Copenhagen (Denmark)
University/education

Rolighedsvej 30
Frederiksberg
1958
Denmark

Website http://www.ku.dk/english/
ROR logo "ROR" https://ror.org/035b05819

Funders

Funder type

Government

Danish Ministry of Foreign Affairs - Danish International Development Agency (Denmark) ref: 57-08-LIFE

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing planNot provided at time of registration

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 01/10/2019 07/05/2019 Yes No
Results article 14/02/2023 17/02/2023 Yes No

Editorial Notes

17/02/2023: Publication reference added.
07/05/2019: Publication reference added.