Fat functions: energy storage, carry nutrients->fat soluble vitamins (A, D, E, K), cell membrane, protective->cushion your internal organs and protect them->good when there is trauma to the body
->brain is 60% fat, help support you immune system, hormone, skin, etc,.
Food sources: Meat, dairy, nuts, seeds, avocados, olives->these foods are more abundant in fats
Saturated: with hydrogen->aren't ALL bad->we can still be healthy when we have it
->hydrogen causes the fats to be stable->the oil/fat doesn't get altered
->the fat in meat, butter, cheese, lard

->most saturated fats are long chain fatty acids
->the margarine that was said to be better: much worse, full of trans fats
->this compares with the unsaturated, where there are gaps
->saturated is more stable when it is heated, therefore it is okay to cook with it
SATURATED FATS: butter
Unsaturated-Hydrogen gaps:
1.
Mono (MUFAs): mono-unsaturated fatty acid: missing one hydrogen-> olive and canola oil->changed to canola-> "Canadian oil", peanut oil, vegetable oil->usually a blend of different oils->problem with it is that there is a lot of colour and chemicals added to them
2.
Poly (PUFAs)-missing many hydrogen therefore is more unstable
->heat can alter the oil and damage it
->with polyunsaturated oils, you must be very careful as to how you store it
->should be kept in a dark container in a fridge (light, oxygen and heat sensitive)
->within the polyunsaturated fatty acids, the omega-3 and omega-6 are essential
Omega 6:
Linolaic acid (LA)->sunflower, safflower, sesame oil
Gamma Linolaic acid (GLA)-borage and evening primrose oil, human milk->people with eczema tend to have issues with GLA absorption
Aricadonic acid (AA): beef fat, egg yolk->problem is that we seem to intake too much which can cause problems in body
->leads to inflammation
TRANS FATS ARE BAD->YOU DO NOT WANT THAT AT ALL
Hydrogenation->trans fats (i.e. margarine)
Omega 3s:ALA-only one considered essential, flaxseed (has omega 6 and omega 3), hemp, walnut, chia, sea vegetables
EPA-fish oil
DHA-fish oil
*DHA and EPA can be formed from ALA
Ratio of Omega 6 to omega 3 key
Now 1:20
Ideal 1:4
Other lipids
Cholesterol-functions and sources
Triglycerides-storage form of fat
Phospholipids-cell membranes and brain (you can use phosphotidylserine and phosphotidylcholine if you have troubling concentrating or have memory problem)
Hydrogenation:
- the process by which manufacturers took a relatively harmless oil and then they altered it by adding hydrogen to it.-> adding hydrogen to these oils solidify it
->polyunsaturated oils are less solid and more fluid->more fragile and unstable->these oils can go rancid (can be damaging to the body)
-because of this, it can throw off the flavour of products and reduce shelf life
-took hydrogen as a gas and infused it into oils->in the process, trans fats are created
-these types of fat should not be consumed at all!->should be eliminated from diets
-trans fats are not always on labels as trans fats->sometimes hydrogenated or partially hydrogenated
->i.e. Shortening, chips, crackers, baked goods, etc.
Cholesterol:
-most people think its bad and must stay away from it
-has many functions in the body:
• It is necessary to create bile in the gallbladder
• Need it to make hormones: i.e. Estrogen, progestrone, testosterone
• Important for the formation of cell membranes
• Important for myelin sheath (covering of nerves)
-these foods don't actually raise cholesterol levels (i.e. Eggs or shellfish)
-it is not the cholesterol in foods that is the problems->myth that we must dispel!
-eggs have choline within them (one of B vitamins)->help reduce cholesterol
-cholesterol is also a healing substance->i.e. Microinjuries in blood vessels and arteries "bandage"
-elevated cholesterol can actually mean that body is injured and there is an up in order to heal the body
->too low cholesterol is more dangerous than slightly elevated
-LIVER PRODUCES CHOLESTEROL
Triglycerides:
-storage form of fat in the body
Phospholipids:
-component of cell membranes and brain
-improve memory
*sallyfallon.com ->tells you step of making margarine
Oils and fatty acids
-our diet doesn't have a lot of the healthy foods and thus we are not accessing the key essential fatty acids
-we have to make sure we are buying fresh oils that are properly stored (i.e. Refrigerated, cap is on, etc.)
-GLA (gamma linaloic acid)-an essential fatty acid: important because it helps reduce inflammation-it is a hormone-like substance
-PG2 is proinflammatory->want to stay away from that
-EPO=evening primrose oil-great source of GLA
-even though they are not essential fatty acid since body can make it from
ALA (
DHA and
EPA)=>the conversion within body isn't always great and the speed may not be fast, therefore people may not be getting large amounts->this conversion may or may not be taking place in a good amount of time->therefore a lot of people go directly to the source (fish oil is a very good source)->
good for brain function, immune system, skin, etc.

-fish should be consumed in moderation because of the toxicity levels in water, farmed fish are a concern for a number of reason, but wild fish also lived in polluted waters
->should avoid very large fish (i.e. Tuna, shark, mackerel, etc.)
->eat wild fish or organic fish (farmed fish in a healthy way)->vary it and try to include fish that have omega 3 fatty acids in there (mackerel, anchovies, wild salmon, sardines, etc.)
-fat in general are very fragile->must make sure we are getting fresh, good quality products and it is being properly stored (not a lot of exposure to light, heat or oxygen)
-
prostoglandins: we have 3 and the middle one is not good (leads to inflammation)->PG2 (because of this women get menstural pains):
-
DHA and
EPA: (these are omega-3 essential fatty acids)-good for learning, need to improve brain function, learning or behavioural issues