EVALUATION OF DIETARY PATTERN, ANTHROPOMETRIC CHARACTERISTICS AND MICRONUTRIENT STATUS OF ADOLESCENTS ATTENDING SECONDARY SCHOOLS IN JOS SOUTH LOCAL GOVERNMENT AREA, PLATEAU STATE

By

Author

Presented To

Department of Biochemistry

ABSTRACT
Changes in the nutrient intake combined with increasing sedentary life style and urbanization 
contribute to the emergence of chronic disease as a major health risk. This study assessed nutritional
status, physical activity, dietary pattern and micronutrient status of adolescents attending Secondary 
School in Jos South Local Government Area (LGA) of Plateau State. A cross-sectional study was
conducted using 588 adolescents attending Private and Public Secondary Schools of Jos South LGA 
between September and December 2014. Data on demographic characteristics were collected using 
semi-structured, pretested questionnaires. Measurements of weight and height were made using 
standardized weighing scales and standiometer respectively. Adolescent Body Mass Index-for-Age 
was compared with WHO (2007) growth reference. Dietary pattern and micronutrient status were 
accessed using standard methods. Results obtained showed mean Age, BMI and Waist/ Hip ratio 
were 16.09 years, 21.05±2.65 and 0.81±0.06 respectively. General prevalence of Overweight was 
high (11.22 %), particularly among the Private Secondary School girls (19.01%). Majority of the 
adolescents (57.99 %) had a fairly low Physical Activity Level and Private Secondary School boys 
showed the highest frequency (64.23%). Dietary pattern of the adolescents showed weekly intake of 
all types of food from “4 to 6 times” to “7 or more times” below 50 percent, except for bread, 
cereals, tubers and other carbohydrate based foods. Mean PCV, serum iron, zinc and copper for the 
Private Secondary School Adolescents were 38.71 percent, 96.15µg /dl, 86.31µg /dl and 84.44 µg /dl
respectively. A percentage of 9.68 %, 16.13 % and 19.35 % adolescents recorded low values for 
serum iron, zinc and copper respectively when compared to reference ranges for iron, zinc and 
copper. The results obtained showed a prevalence of overweight and a fairly low physical activity 
particularly among the Girls. Consumption of cereals, tubers, pasta and other carbohydrate based 
foods was high while mean serum values for Iron, Zinc and Copper for the Private Secondary School 
adolescents were within the normal ranges. Results of this study emphasize the need for educational 
interventions which should include increased exercise and Physical Activity at early ages involving 
the whole family that will promote optimal nutritional status and wellbeing.
TABLE OF CONTENTS
Title page …………………………………………………………………………….……..i
Certification Page ………..……………………………………………………………… - …ii
Declaration …………..………………………………………………………….…………….iii
Acknowledgement ……………………………………………………………………… - ….iv
Abstract ……..…………………………………………………………………………… - v
Table of Contents ……..……………………………………………………………………..vi
List of Table …………..……………………………………………………………… - … - .xi
List of Figure ………………..…………………………………………………………… - ….xiii
List of Appendices ………….……………………………………………………………….xiv
List of Abbreviation ……………………………………………………………………………xv
CHAPTER ONE
1.0 INTRODUCTION …………… - ……………………………………………… - ……1
1.1 Malnutrition …………………………………………………………………..…………1
1.2 Statement of Problem ………… - ………………………………………….…………..…2
1.3 Justification ………….………………………………………………………………….3
1.4 Aim …….…………………………………………………………………… - - - ..3
1.5 Specific Objectives ………………………………………….………………………….4
CHAPTER TWO
2.0 LITERATURE REVIEW - ………………………………………………………… - 5
2.1 Nutrition ……………………………………………………………………………….…….5
2.2 Adolescent Nutrition …… - …………………………………………………………… - 7
2.3 Adolescent Nutritional Challenges Developing Countries - - - ……………….…..9
2.4 Demographic Factors Associated with Nutritional Status - - - ……….…….…11
2.4.1 Age ………………………………………………………… - - - - - - …11
2.4.2 Gender ……..………….……………………………………………………………….…12
2.4.3 Physical activity - ………………………………………………… - - - - - - .12
2.4.4 Socio-economic status ……………..…………………………… - - - - - - ..14
2.5 Dietary Factors Associated with Nutritional Status ….……………………………………15
2.5.1 Effect of calcium and dairy foods ……….………………………………………… - 15
2.5.2 Effect of dietary fiber and whole grain …… - ………………………………………….…16
2.5.3 Effect of fruits and vegetables …………………………….…………………………… - 17
2.5.4 Effect of dietary pattern ……………………………………………………………………18
2.6 Role of Iron, Zinc and Copper in the Human Metabolic Process … - ……………….18
2.6.1 Iron …………… - …………….…..………………………………………………..…19
2.6.1.1 Iron transport, metabolism and storage ……………………………………………20
2.6.1.2 Excretion .………………………………………………………………………..

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