CU-Boulder IPHY 2420 - Fats & Lipids (4 pages)

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Fats & Lipids

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Fats & Lipids


Lecture Notes 9/15/14

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Lecture Note
University of Colorado at Boulder
Iphy 2420 - Nutrition for Health and Performance

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IPHY 2420 1nd Edition Lecture 8 Outline of Last Lecture I High Fructose Corn Syrup a Background b Why is it Used so Often c Why is it Bad for You d How do you Avoid HFCS Outline of Current Lecture I Fats Other Lipids II III IV V VI VII VIII Triglycerides What oil should we buy Phospholipids Cholesterol Saturation Trans Fats Omega 3 vs Omega 6 Current Lecture Fats and Other Lipids Fatty acids Triglycerides Phospholipids Cholesterol FAT Insoluble in water Oil and water do not mix This is a problem because we are made up of water we have to bring oil into the blood to get to the cells Less dense than water These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute Cultural Issues strong reaction to fat 2014 it has a bad rep In 1800 s fat equaled beautiful and wealthy In some countries fat is celebrated South Pacific a proper women can t see her toes because a man loves her enough to over feed her Triglycerides Composed of 3 fatty acids attached to the glycerol backbone Most of the time 95 we talk about triglycerides What oil should we buy OLIVE OIL is very good for you Safflower oil Sunflower oil Soybean oil same nutrient content Coconut oil use to be very bad for you now we believe it is healthy We want to avoid saturated fat this fat lines the arteries around your heart bad news bears Phospholipids Similar chemically to trig Composed by phosphorus and nitrogen This is an emulsifier that force interaction between oil and water Lecithin a form of emulsifier Cholesterol A sterol that is more complex than other lipids Forms as a ring easy to spot Bad in large amounts but it is essential in everyday life Makes Vitamin D Steroid hormones testosterone estrogen Also produces bile which we use to digest fat Saturation Saturation Each carbon atom holds 2 hydrogen atoms much more dense this is the fat we store around our hearts What does bacon grease do at room temperature Gets solid

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