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Exam 1 NDFS

Terms in this set (70)

How does nutrition affect health?
Prevents chronic diseases such as heart disease, some cancers, and diabetes

Supports growth, maintenance, and repair of the body
major nutrients
Macronutrients, micronutrients, water
Macronutrients
carbohydrates, fats, proteins
Micronutrients
vitamins and minerals
Carbohydrates
provides energy
feeds nervous system
keeps digestive system fit
fuels physical activity
4 cal/g
Fat
energy fuel
energy storage
emergency reserve
padding
insulation
9cal/g
Protein
structure and movement
Enzymes and hormones
Antibodies
Transport system
Fluid and electrolyte balance
4cal/g
Vitamins
A- genes, vision, skin
B- activates enzymes
C- collagen synthesis
D- calcium regulation
E- antioxidant
K- synthesis of blood clotting proteins
Minerals
solid
Naturally occurring
water
solvent, cleansing agent, lubricant and cushioning, cooling
roles of nutrients
regulation, energy, structure
Calorie Values
carbohydrates - 4cal/g
fat - 9cal/g
Protein - 4cal/g
alcohol 7cal.g
Study Types
Human intervention study
Observational study
cohort study
basic research study
human intervention study
experimental manipulation of some population of members

show cause and effect

often randomized

ex: when half of the subjects follow diet advice and hand do not, to see how it affects weight game
observational study
researcher does not administer any treatment
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