Chapter 5 Nutrition Flashcards
What is fat important energy source for
Endurance sports
What is fat also known as
Lipids
What are the different types of lipids
Triglycerides
Sterols
Phospholipids
What is an example of a sterol
Cholesterol
What are triglycerides made up of
Glycerol
3 fatty acids
What are the different types of fatty acids
Saturated fatty acid
Mono unsaturated fatty acid
Poly unsaturated fatty acid
Omega 3 fatty acids
Unsaturated fatty acid - cis
Unsaturated fatty acid - trans
What are fatty acids
Long chains of carbons
Always have a even number
What are saturated fatty acids
Bonds
Examples
Cause
BAD FAT
Single bonds
Tropical oils - coconut and palm oils
Chronic diseases
What are monounsaturated fatty acids
Bonds
Examples
Cause
GOOD FAT
1 Double bond
Olives/olive oil
Avocado
Nuts
Lower chronic diseases
What are Polyunsaturated fatty acids
Bonds
Examples
NEUTRAL FAT
More than 1 double bond
Cheaper oils
Nuts
Do americans eat more MUFAS or PUFAS
PUFAS
What is omega 3 fatty acids
Bonds
Example
GOOD POLY FAT
Form of a PUFA
The 3rd carbon is where the double bond is located
Fish
What are Cis unsaturated fatty acids
Where are they usually found
Hydrogens on the SAME side of the double bond
Usually found in nature
What are trans unsaturated fatty acids (Trans fat)
What creates them
VERY BAD FAT
Hydrogens on the OPPOSITE side of the double bond
Hydrogenation creates trans unsaturated fats
Why are trans fats produced
Cheaper
Long shelf stability
Feels good in mouth
How do you work out the percentage of a macro nutrient in a product
Example
Grams of macro X Grams per calorie
/ total calories X 100
8 grams of fat X 9 grams per calorie = 72
72 / 150 total calories X 100 = 48%
What is cholesterol
IS NOT FAT
IS A STEROL