Introduction

Food is essential for human life because it is the source of energy and nutrients. Energy supports the activities of human body, whereas nutrients are vital for growth, repair and maintenance of good health.
Good nutrition is very important in every stage of life. Pregnant women and lactating mothers require additional nutrients to support a normal pregnancy and lactation for the babies respectively. Infants need energy and nutrients for growth and development, while well-nourished children and adolescents grow and learn better. Young and older adults require different nutrients in balanced amount to maintain good health and prevent diseases.
To achieve good nutrition, it is important to learn more about the sources and functions of nutrients. The Nutrient Information Inquiry System (NIIS) is a web-based searchable database containing nutrient data of commonly consumed food items which are of relevance and interest to our local community. The information provided is for personal non-commercial use and reference to make healthy food choices.
In order to protect bodily health, maintenance of a healthy balanced diet is important. For more nutritional information and advice, please visit the Department of Health's website at http://www.cheu.gov.hk/eng/info/exercise_04.htm, or consult relevant health professionals.