Nutrition Final Flashcards
What are the leading causes of death in the U.S.?
Diseases of the heart, cancer, diabetes. suicide, kidney disease, and accidents.
What is nutrition?
The science of food; the nutrients and substances therein; their action; interaction; and balance in relation to health and disease; and the process by which the organism ingests, digests, absorbs, transports, utilizes, and excretes food substances.
What are nutrients?
Substances essential for health that the body cannot make or makes in quantities too small to support life.
What are characteristics of an ESSENTIAL nutrient?
Specific biological function
Absence from the diet leads to decline in biological function
Functions of nutrients
Provide energy
Important for growth and development
Keep body functions running smoothly.
Provide Energy
Most carbohydrates, proteins, and most lipids
Promote growth and development
Proteins, Lipids, some vitamins, some minerals, water
Regulate Body Processes
Proteins, some lipids, some vitamins, some minerals, water
Macronutrients
Carbohydrates, lipids, proteins, water
Micronutrients
Vitamins, minerals
What are Carbohydrates composed of?
Composed of carbon, hydrogen, and oxygen
Food Sources of Carbohydrates
Fruits, vegetables, grains and beans
Carbohydrate kcal/g
4 kcal/g
Simple forms of Carbs
Table sugar, blood sugar
Complex forms of Carbs
Starch, glycogen, fiber
What are Lipids composed of?
Carbon, oxygen, and hydrogen
Insoluble or Soluble?
Insoluble
How many kcal/g in Lipids
9kcal/g
Solid V.S. Liquid
Fats are lipids that are solid at room temp
Oils are lipids that are liquid at room temp
Triglycerides
Major form of fat in body
Major energy source for the body
Composed of 3 fatty acids attached to a glycerol backbone.
Saturated Fats
Solid
Animal Sources
Raise blood cholesterol
Cardiovascular disease
Unsaturated fats
Liquid
Plant sources
Healthier
Essential Fatty Acids
Linoleic Acid & Alpha-linolenic Acid
Regulate blood pressure
Regulate nerve transmission
Structural components
Found in vegetable oils and fish
Trans Fatty Acids are
Unsaturated fats that have been processed from cis form to trans form