Nutrition and food production






Nutrition and food production




By Ebell Kwon








Calorific values of various food










  1. Calorific value is the amounts of energy contained in food.






  2. Calorific value is the energy released when 1 gram of food is burnt in a bomb calorimeter.






  3. The Calorific value of carbohydrates is 16 .7 kJ/g, that of proteins is 16.7kJ/g and thatof fats is 37.6kJ/g.






  4. The actual enrgy contained in a meal mostly depends on the amounts of carbohydrate, proteins and fats.






  5. Calorific value is usually measured in the units of calorie or joule.






  6. The conversion is



































































1 CALORIE




4.2 joule




1 CAL




4.2 J




1 KILOCALORIE




4.2 kilo joule




1 KCAL




4.2kJ












Factor that affects total calorie required by an individual.










  1. Sex






  2. Body Size






  3. Age






  4. Nature Of Work






  5. External environment






  6. Status of Health






  7. Pregnant