NUTR 125 Chapter Notes - Chapter 1: Monoglyceride, Digestion, Aspirin
Document Summary
Reduce heart attack risk, but excess may cause hemorrhagic stroke. Alpha-linolenic c18-> epa-converted into -> dha , group 3 dha (via desaturases and elongases) Problem is that this conversion is fairly inefficient. (11:06) not best source of epa/dha. Epa/dha conversion can be as low as 1% Best source of epa/dha is fish oil/ sea food. Best source of omega-3: wild salmon, anchovies, sardines. Problem: some of these fish are high up on the food chain and consume industrial compounds that are toxic. Can get a lot of contamination from these sources. Higher up you are on the food chain, greater potential to accumulate these toxins. In general you want to get fish that are on the low end of the food chain like anchovies and sardines-> to reduce this risk. Body- absorbs more than 95% of lipids (11:20) Digestion: lipids are hydrophobic-> body has to solubilize (don"t dissolve in water)
