Post on 03-Jun-2018
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8/12/2019 Lecture Slides Week1 1 4 Lipids
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Focus on: Lipids
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Nutrients: Energy Yielding or Not?!"#$%&'# )%&*+, -'&$./0
Yes NoMacronutrientsCarbohydrates 4 kcal/gramFats 9 kcal/gramProtein 4 kcal/gramMicronutrientsVitamins Minerals MiscellaneousWater Alcohol 7 kcal/gram
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Overview
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Lipid Classification
Triglycerides
95% of dietary fat comes from triglycerides
The major form of lipid in food & in the body
Phospholipids
Allow water & fats to mix
Has hydrophilic phosphate head & hydrophobic fat-soluble tail
Sterols
Form cholesterol, vitamin D, sex hormones, cortisol (stress hormone)
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Triglycerides
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Saturated Fatty Acids
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Unsaturated Fatty Acids
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Degree of Saturation: Oils
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Degree of Saturation: FoodsMonounsaturated Polyunsaturated Saturated
Avocado Omega-6 CheeseOils: canola, olive, peanut,
sesame
Margarine, mayonnaise Butter, Shortening
Walnuts Bacon & Meat fat
Olives Pumpkin & sunflower seeds Chocolate
Peanut butter Oils: corn, cottonseed,safflower, soybean
Cream, !& !, sour cream
Sesame seeds Lard
Nuts: almonds, cashews,filberts, hazelnuts,
macadamia, peanuts,pecans, pistachios
Salad Dressing Whole-milk products
Omega-3Oil: coconut, palm, palm
kernelFatty fish, flax, nuts
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Trans Fatty Acids
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Phospholipids
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Sterols
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Concept Check: Sterols
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