Lecture 10 (Part 2) Flashcards
*People should increase omega-3 intake and limit omega-6 intake to get most benefits
what foods boost the intake of omega-3 fatty acids
Fatty fish such as salmon, herring, and mackerel to boost the intake of omega-3 fatty acids
Trans Fatty Acids are found in what food products
Found in milk and meat products
what differentiates trans-fatty acid and cis fatty acids in terms of molecule formation
The main difference lies in the arrangement of hydrogen atoms around the double bond in the carbon chain.
In cis-fatty acids, the hydrogen atoms attached to the double bond are on the same side of the carbon chain.
In trans-fatty acids, the hydrogen atoms attached to the double bond are on opposite sides of the carbon chain.
how does the hydrogen atoms being attached on the same side of the double bond affect the shape of the cis fatty acid
makes a kink in the chain
how does the hydrogen atoms being attached on the opposite side of the double bond affect the shape of the trans fatty acid
the hydrogens on opposite sides make a linear formation and straighten out the chain instead of having a kink in the chain
what is more present in processed food cis or trans fatty acids
trans fatty acids more present in processed foods
why does the food industry adds hydrogens to unsaturated fatty acids (hydrogenation/partial hydrogenation)
Advantages:
Protects fatty acids against oxidation (reacting with oxygen)
Reduces chances of becoming rancid and prolongs shelf life
Regular ingestion of trans-fatty acids associated with
increased heart disease
Increases LDL (“bad” cholesterol)
Decreases HDL (“good” cholesterol)
Increase weight gain
Promotes visceral fat accumulation
Induces inflammation
