HUMAN NUTRITION

NUTRITION

SPORTS NUTRITION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
the energy value of digestible dietary protein is ____ kcal per gram?
A
10
B
9
C
7
D
4
Explanation: 

Detailed explanation-1: -It uses a single factor for each of the energy-yielding substrates (protein, fat, carbohydrate), regardless of the food in which it is found. The energy values are 17 kJ/g (4.0 kcal/g) for protein, 37 kJ/g (9.0 kcal/g) for fat and 17 kJ/g (4.0 kcal/g) for carbohydrates.

Detailed explanation-2: -Carbohydrates and Protein both contain 4 kilocalories per gram, while Fat provides 9 kilocalories per gram. Basically, the energy is measured in kilojoules (KJ) or kilocalories (Kcal) [1 kilo calorie equals to 4.2 kilojoules].

Detailed explanation-3: -According to the U.S. Department of Agriculture (USDA), protein has 4 calories per gram. For the typical healthy diet, approximately 20-30% of your total daily calories should come from protein. Your body needs protein for growth, muscle maintenance and energy.

There is 1 question to complete.