Please use this identifier to cite or link to this item: http://hdl.handle.net/10321/877
Title: Determining the contribution of lunchbox content to the dietary intake of girls (13-18 years old) in a high school in Lindelani
Authors: Hlambelo, Nomakhosazana
Issue Date: 30-Jul-2013
Abstract: There is lack of data on the dietary intake and patterns of Lindelani adolescents, which
necessitates comprehensive nutritional assessment.
Objectives: The objectives were to investigate the dietary intake and nutritional analysis of
lunchbox contents of high school girls (13 -18 years of age) in Lindelani and evaluate its
contribution to their dietary intake.
Methodology: The study was of a descriptive nature with an analytical component, a
convenience sample of 61 learners who brought lunchboxes from home and completed a
socio- demographic questionnaire, QFFQ and two 24- hour recall questionnaire used for
evaluation of their dietary intake. Anthropometric measurements, including body
composition, were performed.
Anthropometric data were captured on a Microsoft Excel
spreadsheet and displayed on WHO growth charts to determine stunting, wasting,
underweight and over-weight. . Lunchboxes were required and collected without informing
participants to avoid bias, each lunch box was weighed and the content recorded and analysed
using Food Finder 3 computer software program. It was analysed by selecting the mean
intake of the group and comparing it to the Daily Recommended Intake (DRIs) for this group
of individuals.
Results: The results indicated that the food group most commonly consumed was
carbohydrates. The lunchbox mean energy content was 90.14 kJ (>100% of DRIs) which is a
big portion for a lunchbox since there are other meals of the day to be eaten too. The mean
intake of fruit portion consumed was 135g which was only consumed by 1% in the top 20
food items compared to 141.82g consumed by 18% in 24- hour recall. Bread, margarine and
polony were commonly consumed in QFFQ, Lunchboxes and 24- hour recall. Fat
consumption for lunchboxes was 34.04% higher than the WHO nutrient intake goal which
put these teenagers at risk of overweight. Fruit and vegetable intake was 106.95g (QFFQ),
107.27g (24-hour recall) and 109.49g (mean lunchbox content). This indicates poor intake of
fruit and vegetables, being far lower than WHO recommendation of 400g per day. Dietary
fibre was also found below 25g.
Conclusion: Although the group seemed to consume all the nutrients but it is a small sample
of the population. The study indicated that the majority of the respondents consume mostly
IVcarbohydrate diets and the lunchboxes did not meet the basic requirements of a balanced diet.
The lunchboxes contributed on average one third of the girl’s daily food intake.
Description: Dissertation submitted in fulfilment of the requirements of the Degree of Magister Technologiae: Food and Nutrition, Durban University of Technology, 2012.
URI: http://hdl.handle.net/10321/877
Appears in Collections:Theses and dissertations (Applied Sciences)

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