Nutrition & Fats Flashcards
the energy-yielding sub-set of lipids
fats
diverse class of molecules that are insoluble in water
lipids
what are the 3 types of lipids found in foods?
triglycerides (fats)
phospholipids
sterols
what are triglycerides composed of?
3 fatty acid molecules
when every carbon atom on the chain of a triglyceride has the max number of hydrogen atoms bound to it
saturated fatty acids
when the chain of a triglyceride lacks hydrogen atoms at one location
monounsaturated fatty acids
when the chain of a triglyceride lacks hydrogen atoms at multiple locations
polyunsaturated fatty acids
what are phospholipids composed of?
phosphate
glycerol backbone
2 fatty acids
what lipid is manufactured in our bodies so are not required in our diet?
phospholipids
lipids containing multiple rings of carbon atoms
sterols
what is the most common sterol in our diet?
cholesterol
an essential component of cell membranes and is used to synthesize many hormones and other important compounds
cholesterol
is cholesterol an essential component of our diet?
no - manufactured in our bodies
why are fats no digested and absorbed easily?
they are insoluble in water
what is the stomach’s role in regards to fats?
break fats into small droplets
where does most digestion and absorption of fats occur?
small intestine
a storage of energy, that is used at rest and for energy during low to moderate intensity exercise
fat
essential for cell membrane structure, nerve cell transmissions, protection of internal organs, and retention of body heat
fats
how/why do fats make us feel satiated? (2)
more energy-dense than carbs or protein
take longer to digest
what is the Acceptable Macronutrient Distribution Range for fat?
20-35% of calories
what kind of fat should be reduced to the absolute minimum?
trans fatty acids
fats that we knowingly add to foods; include butter, cream, mayo, and dressings
visible fats
fats hidden within foods; either naturally occurring or added during processing
invisible fats
what is a health problem that can occur from fat?
cardiovascular disease