Exam 1/ch.6 Flashcards
triglycerides
fats/oils (most common in foods such as fried food and meat) that stores/transports energy
3 fatty acids attached to glycerol backbone
fatty acids
chains of carbon atom linked together and surrounded by hydrogen atoms
carbon chain length varies (12=long,6-10=medium, less than 6=short)
saturation: single bonds between carbon (saturated) one double bond (monounsaturated) at least 2 double bonds (polyunsaturated)
essential fatty acids: omega-3 (alpha linolenic acid, EPA, and DHA) and omega-6 (linoleic acid)
phospholipids
glycerol head with 2 fatty acid tails
component of cell membrane and an emulsifier in food
found in egg yolks, wheat germ, and peanuts
sterols
used to make sex hormones, adrenal hormones, bile, cell membranes
found in meat, fish, poultry, eggs, and dairy products
energy density
9 kcal/g
functions of fat
store energy and insulate body
fat recommendations
no RDA for fat
its range is between 20-35%
mediterranean diet
up to 40% of calories can be from fat as long as they are monounsaturated fats
olive oil is main source, intake of fruit, veggies, etc. fresh foods