A serving of food contains 2 g carbohydrate, 16 g protein, 6 g fat, 2 mcg vitamin b12, and 60 mg iron. A serving of this food provide 126 Kcal.
Carbohydrates are the macromolecules formed from carbon, hydrogen and oxygen elements. They are composed of fibers, starch and sugars. They can be of three types: monosaccharides, disaccharides and polysaccharides. Proteins are the polymers of amino acids. These are the most healthy form of foods. They are used in the synthesis and repair of body parts. Proteins can be found in eggs, lentils, soybean, etc.
The formula to calculate the energy from food is
Energy (Kcal) = 4x(Proteins + carbohydrates, in grams) + 9x(fat in grams)
Therefore, according to the question,
Energy = 4x (16 g + 2g) + 9x (6g)
Energy = 126 Kcal.
To know more about carbohydrates, here
brainly.com/question/14614055
#SPJ4
