2.4.1 Calories A calorie is the unit used to measure the energy-producing value of food. Theoretically, calorie is characterizes as a unit of heat measurement, in nutrition and the kilocalorie is the amount of heat required to raise the temperature of 1kg water through 1˚c.
Another definition is that calorie is a unit of measurement that determines the amount of heat released in a food during metabolism. It states the energy value of a food calorie (cal) or kilocalories (kcal). The body needs energy to manage about 1000 to 2800 kcal per day (depends on age, work type, gender etc.) which is provided by food. There are four major sources of energy in food: like-
1. Carbohydrate 2. Protein, 3. Fat, and 4. Alcohol. …show more content…
It is also provides some important essential vitamins and minerals which can maintain strong bones, immune system and get energy from food. According to the WHO, 2002, a source of protein is very essential for human body of a healthy diet. Children's will feel fuller between meals when they consume protein-rich foods throughout the day and the children need sufficient protein to grow up. A balanced protein diet highly recommended for children's for strong bones, immune system, built muscle and grow up. One of the key issue is that children's need to take everyday a balanced diet such as a variety of foods including meats and dairy, breads and cereals, fruits and vegetables, and these food groups provide important nutrients including protein for growth and cognitive development (Nutrition Education Materials Online, AUS, …show more content…
However, 250 million preschool children worldwide are vitamin A-deficient and are at risk of developing preventable health conditions, according to the World Health Organization. According to icddr’b, (2012b), vitamin A deficiency in children not only causes visual impairment and blindness, but it also increases the risk of severe illness or death from childhood infections such as measles and diarrhoea. It is a major public-health problem in the last two decades in Bangladesh (Helen Keller International, 2004). According to Bangladesh Demographic and Health Surveys (BDHS) in 2007, children's are receiving vitamin - A supplement capsule during the last six months and the latest Bangladesh Demographic and Health Surveys (BDHS) report in 2007 showed an remarkable coverage of immunization at