Trans fats don't go rancid,
more stable during deep frying
and they can change textures of
foods like no other fat
Fats protect internal organs from
shock and injury, insulate the body,
and promote healthy skin.
Fats provide 9 calories per gram.
Fat: a nutrient that is essential for body
energy, insulation, and protection.
Oils: fats that are liquid at room temperature
Oils come from different plants and from fish
Vegetable Oils: oils extracted
from plant sources
Vegetable ShorteningsL a blend of
oils hydrogenated to become a solid
Lipids: a family of chemical compounds,
which include fats and oils
Cholesterol: a fat-like substance made
of glucose or saturated fat
Fat-like substance found in our blood, found in animal
tissue but never in plants, it;s essential for many body
processes, and it produces hormones and bile acids
Too much cholesterol is linked to
heart disease and obesity
Two types:
HDL Cholesterol: "High Density
Lipoprotein", "good" kind of
cholesterol. and moves excess
cholesterol from the blood to the liver
LDL Cholesterol: "Low Density
Lipoprotein", "bad" kind of cholesterol,
and takes the cholesterol from the liver
to the blood when it is needed
Too much LDL cholesterol in the
bloodstream means buildup in the arteries
and increased chance of heart attack
Fat is a good source of
back-up energy, should be
secondary to
carbohydrates, and fats are
the most concentrated
source of energy
Fat functions: supplies heat, carries vitamin
A, D, E, K, adds flavor to food, satisfies
hunger, protects organs from shock and
injury, and promotes healthy skin
Fat soluble vitamins (ADEK) can only dissolve in fat
Only 4 vitamins are fat-soluble, which means
they can only move around in your bloodstream
and help you with the assistance of fat molcules
Fat keeps you from being hungry because it remains in the
body longer than other foods and gives you a “full” feeling.
Fatty acids: the chemical chains that make up fats
Fatty acids with only single bonds are called saturated.
Saturated Fatty Acids: Fats that usually come
from animal sources, solid at room temperature
Fatty acids with one or more double
bonds are called unsaturated.
Polyunsaturated
Found in veggies, fish, and are
semi-liquid at room temperature
“healthy” fats that help lower LDL “bad”
cholesterol and contain essential fatty acids
Monosaturated
Monosaturated: semi-solid or
liquid at room temperature
“Good or healthy” fats because they can
lower your LDL “bad” cholesterol
The body needs fatty acids to transport other
molecules such as fat-soluble vitamins (ADEK)
Hydrogenation: chemical process
making liquid fat a solid fat
Butter: fat extracted from
milk and churned into a solid
Margarine: fat extracted from
milk and churned into a solid
Lard: extracted from animal fats
Rancid: Fats that have begun to decompose
Trans Fat: unsaturated fat molecule
chemically changed to be a solid fat
Lasts longer on the shelves and can cause heart disease
Cholesterol and Fatty Acids affect each other:
Saturated Fats: raise both HDL and
LDL cholesterol levels in the blood
Polyunsaturated Fats: lower both the LDL
and HDL cholesterols in the blood
Monounsaturated: raise the HDL and lower
the LDL cholesterol in the blood