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substances in food that provide energy and materials for cell development, growth, and repair


large molecules that contain carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur

amino acid

a molecule of protein that is made up of a large number of smaller units


the main sources of energy for your body


nutrients that store energy, cushions organs, and helps the body absorb vitamins


water-soluble or fat-soluble organic nutrient needed in small quantities for growth, for preventing some diseases, and for regulating body functions


inorganic nutrient that regulates many chemical reactions in the body

food group

groups of food-such as bread, cereal, rice, and pasta-containing the same type of nutrients

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