UWEC BIOL 196 - Trans Fat, DHA/EPA, Omega Fatty Acids (3 pages)

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Trans Fat, DHA/EPA, Omega Fatty Acids



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Trans Fat, DHA/EPA, Omega Fatty Acids

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Trans fat risks, importance of essential fatty acids, fish oil, etc.


Lecture number:
21
Pages:
3
Type:
Lecture Note
School:
University of Wisconsin-Eau Claire
Course:
Biol 196 - Human Nutrition
Edition:
1

Unformatted text preview:

BIOL 196 1st Edition Lecture 21 Outline of Last Lecture I Lipids II Fatty acids III Double bond classification IV Health monounsaturated fats V Health polyunsaturated fats VI More fatty acid types Outline of Current Lecture I Health dangers of excessive Trans fatty acids II Circulation III FDA proposed ban on trans fat IV Essential fatty acids all are polyunsaturated V Why is fish oil or EPA DHA so important VI Functions of EFA s essential fatty acids Current Lecture I II Health dangers of excessive Trans fatty acids a Increases risk of heart disease i Raises LDL bad cholesterol ii Lowers HDL good cholesterol iii Increases inflammation iv Bad for arteries Circulation a Trans fat can be easily found in blood i Fats make up cell membranes 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 III IV V VI b 6 year term clear conclusions of health effects FDA proposed ban on trans fat a 7 saturated fat is 15 g on a 2000 kcal diet b 20 30 fat intake is actually okay c However eat polyunsaturated and monounsaturated fats Essential fatty acids all are polyunsaturated fats a Omega 6 linoleic acid i Sources plant oils corn soybean cottonseed sesame sunflower safflower b Americans get plenty of active form arachidonic acid i We need to make hormones eicosanoids c Omega 3 linolenic acid i DHA EPA 1 In plants canola oil soybean oil flaxseed or oil walnuts ii DHA and EPA in some fish and breast milk omega 3 eggs some peanut butters iii EPA eicosapentaenoic acid iv DHA docosanexaenoic acid 1 Throughout body very high amounts in brain and retina 2 5 of what you eat will ever get turned into EPA or DHA a Even if you eat a good source b Body cannot conform it to DHA or EPA easily c Better to eat DHA or EPA directly 3 Daily recommendation a Men 1 6g day b Women 1 1 g day v White albacore tuna is expensive and has high levels of mercury yes has 3 times the omega 3 compared to chunk tuna



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