Ch 1 Flashcards
(21 cards)
calorie
unit of heat used to express the amount of energy provided by food or expended by the body
essential nutrient
nutrient that must be consumed in the diet because it cannot be made by the body
fortification
addition of nutrients to foods.
phytochemical
substance found in plant foods that is not an essential nutrient but may have health-promoting properties
functional food/nutraceuticals
food that has health-promoting properties beyond basic nutritional functions
six classes of nutrients
carbohydrates, lipids, proteins, water, vitamins, and minerals
macronutrients
Carbohydrates, lipids, proteins, and water
micronutrients
Vitamins and minerals
Organic compounds
Carbohydrates, lipids, proteins
Types of carbohydrates
starches, sugars, fiber
Types of lipids
cholesterol, saturated fats, and unsaturated fats
All proteins are made up of
units called amino acids that are linked together in different combinations to form different proteins
Carbs chemically contain
carbon, hydrogen, and oxygen, in the same proportions as in water (H2O).
fiber cannot be
broken down by human digestive enzymes
High cholesterol in blood causes
risk of heart disease
saturated fat found in
solid animal fats, -> heart disease
unsaturated fat found in
plant oils, -> reduced risk of heart disease
kilocalories/kcal
units of 1000 calories
Carbohydrates provide # calories
4 calories/ gram
Lipids provide # calories
9 calories/grams
Protein provides # calories
4 calories/gram