Fat Flashcards
(22 cards)
Roles Of Triacylglycerols And Fatty Acids?
Structural Element In all cell membranes • Energy 9 kcal per gram (CHO is 4kcal/g, protein 4 kcal/g and alcohol 7 kcal/g). • Insulation reduces heat loss • Protection of internal organs. • Transport carriers of fat soluble vitamins (i.e. A, D, E and K)
what is saturated?
Carry maximum number of hydrogen atoms
(carbon atoms are saturated with hydrogen
what is monounsaturated?
One double bond with a neighbouring carbon
what is polyunsaturated?
More than one double bond
what does omega 3 do?
Helps support visual and cognitive development
– Most abundant in brain and retina
– Regulates cell activity and cardiovascular function
What does omega 6 do?
Supports brain development
– Stimulation of growth
– Maintenance of skin and hair growth
what do solubles A, D, E, K do?
A - vision, reproduction, bone health, immune function, skin
D - Strengthens bones, calcium absorption, immune system
E - Immune system, flushes toxins
K - Blood clotting, bone health
what do lipoproteins do?
cholesterol attaches itself to it so it can travel through blood
what is the process for fatty acids to reach the liver?
fatty foods GI tract digestion absorption blood bourne fats liver
what is the process for fatty acids to reach muscle?
fat droplets
fatty acids
oxidation
Co2 Aerobic
what are tryglicerides made up of?
glycerol back bone and 3 fatty acids
Following Beta Oxidation what do fatty acids form?
Acetyl co-A
what happens when there is an increase in blood glucose?
insulin increases which then blocks fatty acid metabolism.
delivery of fatty acids to tissue is then surppressed
An increase in fat metabolism will preserve CHO, ho w would you do this?
increase aerobic metabolism
what happens to fat oxidation during exercise?
As exercise intensity increases, fat oxidation decreases
what happens to carbs oxidation during exercise?
as exercise increases so does carbs oxidation
what are the dominant fuels oxidized during exercise?
carbs and fatty acids
what influences carbs and fatty acids?
diet muscle glycogen content exercise intensity duration training status
what RER represents 100% fat oxidation?
0.71
supplements to increase fat oxidation?
• Bitter orange
– Thought to activates beta oxidation & appetite
suppression
• Caffeine
– Thought to stimulate lipolysis
• Green tea
– Thought to stimulate lipolysis, oxidative properties,
maintain better glycaemic control after a glucose
load (Venables, 2008)
• Cartinine
– Believed to help transport of FA’s into
mitochondria
What impact does consuming low GI CHO prior to exercise have?
Increased fat oxidation
what happens when your diet is too low in fat?
Poor Vitamin Absorption – Body needs dietary fat to absorb them 2. Depression – Lack of omega 3 and 6 oils which are linked to enhanced mood and behaviour 3. Increased Cancer Risk 4. High Cholesterol and Heart Disease 5. Imbalance of Nutrients—Especially Carbs 6. Overeating
