CHAPTER ONE 1.0 INTRODUCTION 1.1 Background of the Study Proteins are essential nutrients for the human body (Hermann, 2002). They are one of the building block of the body tissue, and also serve as a fuel source. As a fuel, protein contain 4kcal (17kj) per gram, just like carbohydrates and unlike lipids, which contain 9kcal (37kj) per gram. The...
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