Nutrition
The process by which a living organism assimilates food and uses it for growth and repair of tissues
calorie
The amount of heat energy required to raise the temperature of 1 gram of water 1 degree Celcius
Calorie (kcal)
A unit of expression of energy equal to 1,000 calories. The amount of heat energy required to raise the temperature of 1 kilogram or liter of water 1 degree C
Protein
Amino acids linked by peptide bonds.
Carbohydrates
Neutral compounds of carbon, hydrogen, and oxygen (such as sugars, starches, and celluloses), which make up a large portion of animal foods.
Lipids
A group of compounds that includes triglycerides (fats and oils), phospholipids, and sterols