LIFESCI 2N03 Chapter Notes - Chapter 3: Lecithin, Unsaturated Fat, Choline
7 Dec 2018
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Document Summary
Epa and dha: these fatty acids are needed for optimal cardiovascular system function, platelet function, endothelial cell function and nervous system development and health. Summary: there are different types of dietary lipids, including triglycerides, phospholipids and sterols. Each serves a purpose in food preparation (in the case of the phospholipid, lecithin) and in the body. Triglycerides are made up different types of fatty acids, which can be distinguished by the length of the carbon chain and number of double bonds in the carbon chain. The dietary fats that we consume are mixtures of different types of triglycerides and fatty acids: the process of dietary fat digestion and absorption involves various chemicals and organs. We should aim to consume 20-35% of kcal from fat each day. There is a lot of research suggesting that trans fat intake should be limited to 1% of total kcal intake and saturated fat should not exceed 10% of total kcal intake.
