Lectures 6 _ 7 - Lipid Digestion _ Absorption B_W

Lectures 6 _ 7 - Lipid Digestion _ Absorption B_W - Lipids...

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1 Lipids 9/19 and 9/21/11 S.E. Fleming Recommended readings: Smolin & Grosvenor, Chapter 5. 1 Lecture Outline Introduction Major lipids in our diet Triglycerides & their fatty acids Phospholipids Sterols Digestion and absorption of dietary lipid Chylomicrons Lipoprotein particles LDL HDL Functions of lipid Lipids and disease prevention Summary 2 Lipids 3 Lipid is the chemical term for fat. Lipids contribute texture, taste, flavor and aroma to foods. Source of energy for our bodies Fats and oils contain 9 calories per gram. Aids in absorption of fat soluble vitamins (Vit A, D, E & K) The typical American diet contains about 33% of its energy from fat. In the body, lipids are an important part of cell membranes Lipids are a main component of cell membranes 4 5 Fat Intake Affects Health Lecture Outline Introduction Major lipids in our diet Triglycerides & their fatty acids Phospholipids Sterols Digestion and absorption of dietary lipid Chylomicrons Lipoprotein particles LDL HDL Functions of lipid Lipids and disease prevention Summary 6
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