Physiologic Value of Food
PHYSIOLOGIC VALUE OF FOOD
Organic compounds * Protein * Lipids * Carbohydrates * Vitamins
Inorganic elements * Water * Minerals
Vit & min * Act as a catalysts which prompt the 3 major nutrients –carbohydrates , protein,fats
METABOLISM
* “Metabolismos”-to change or alter * Chemical process of transforming foods into complex tissue elements and of transforming complex body substance into simpler ones, along with the production of heat energy * Is the totality of the chemical processes in the body in which substance are change in other substance to sustain life.
Energy
* I the force of power that enables the body to do its work * Chemical energy locked in foodstuffs by reason of the chemical process.
ENERGY FROM FOODS
The CALORIE
Kcal/ kilogram calorie * Unit of energy
Calorie
* Standard unit in measuring heat * Unit of measurement for the energy that the body gets from food. * Buy product when carb, pro and fats oxidize from the body * 1kcal-heat energy required to raise the temp of 1 kg of H20 1 degree centigrade.
Fuel factor of carb=4 calories/gram
Fat= 9cal/g
Protein=4 cal/g
Bomb calorimeter * Device used to measure total calorie/energy content available from food. * Measured in kilocalories * 1000calories=1 kcal
JOULE
* Measure of energy in metric system * 1cal/kcal= 4.184joule/kilojoules
Fyi: 1 cup of milk
12g carb=48kcal
8 gram protein=32kcal
10 gms fats=90 kcal
Total=170 kcal
COMPONENTS OF ENERGY EXPENDITURE
BASAL METABOLISM * Measure of the energy needed by the body at rest for all its internal chemical activities. * Aprx. 1 cal/kg of body weight * Minimum amt of the body needed to * Respiration * Cellular metabolism * Circulation * Glandular act * Maintenance ng temp
BMR- rate of basal metabolism in person at given time and place condition necessary for BMR test 1. Must be in fasting 12 hrs after meal-test usually in the morning 2. Must be
Organic compounds * Protein * Lipids * Carbohydrates * Vitamins
Inorganic elements * Water * Minerals
Vit & min * Act as a catalysts which prompt the 3 major nutrients –carbohydrates , protein,fats
METABOLISM
* “Metabolismos”-to change or alter * Chemical process of transforming foods into complex tissue elements and of transforming complex body substance into simpler ones, along with the production of heat energy * Is the totality of the chemical processes in the body in which substance are change in other substance to sustain life.
Energy
* I the force of power that enables the body to do its work * Chemical energy locked in foodstuffs by reason of the chemical process.
ENERGY FROM FOODS
The CALORIE
Kcal/ kilogram calorie * Unit of energy
Calorie
* Standard unit in measuring heat * Unit of measurement for the energy that the body gets from food. * Buy product when carb, pro and fats oxidize from the body * 1kcal-heat energy required to raise the temp of 1 kg of H20 1 degree centigrade.
Fuel factor of carb=4 calories/gram
Fat= 9cal/g
Protein=4 cal/g
Bomb calorimeter * Device used to measure total calorie/energy content available from food. * Measured in kilocalories * 1000calories=1 kcal
JOULE
* Measure of energy in metric system * 1cal/kcal= 4.184joule/kilojoules
Fyi: 1 cup of milk
12g carb=48kcal
8 gram protein=32kcal
10 gms fats=90 kcal
Total=170 kcal
COMPONENTS OF ENERGY EXPENDITURE
BASAL METABOLISM * Measure of the energy needed by the body at rest for all its internal chemical activities. * Aprx. 1 cal/kg of body weight * Minimum amt of the body needed to * Respiration * Cellular metabolism * Circulation * Glandular act * Maintenance ng temp
BMR- rate of basal metabolism in person at given time and place condition necessary for BMR test 1. Must be in fasting 12 hrs after meal-test usually in the morning 2. Must be