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Nutrition, Lipids

Omega-3 fats are essential nutrients that may lower your risk of heart disease. Found in fish oils like cod liver oil and flaxseed, they are vital for maintaining heart health. Understanding fats also entails exploring saponification and hydrogenation processes, which change the structure and health impacts of fats in food. Trans fats, created through hydrogenation, negatively affect cholesterol levels. Meanwhile, lipids, including phospholipids and steroids like cholesterol, play crucial roles in cell membranes and hormone production. Incorporating healthy sources of fats into your diet is essential.

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Nutrition, Lipids

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  1. Nutrition,Lipids

  2. Omega – 3 Fats • A double bond third from the non-acid end • May serve to reduce your chances of getting heart disease. • Found in fish oils • Like cod liver oil • Also in flaxseed • For omega – 3 enriched eggs

  3. Fats and Oils • Saponification – spit off fatty acids • Hydrogenation – add hydrogens thus decreasing # of double bonds • Changes some cis double bonds to trans double bonds (unnatural) • Trans pack better than cis so are more solid • Trans fats raise bad cholesterol and lower good cholesterol • Saturated fats probably better

  4. Fat or Oil Foods • Margarine • Butter, cream, milk • 80%, 35%, 4-2-1-.5% • Mayonnaise – 80% • Chocolate - ~30%

  5. Fake Fats • Why fake fats?

  6. Lipids - Phospholipids • Substitute phosphoric acid for one fatty acid on a fat molecule • Main molecule of cell membranes • Pam spray

  7. Lipids - Steroids • Have the following general shape • Include cholesterol and sex hormones

  8. Anabolic steroid Andro-6

  9. Cholesterol • Structure:

  10. Cholesterol • ~250 grams/adult • ~80% in bloodstream is manufactured in the body • Used by body to produce: • Vitamin D, Cortisone, sex hormones, etc • Cell membranes • Need it in your diet

  11. Lipids - Waxes • Used for Protection • In plants, to conserve water • On feathers, so they won’t water wet • Why ear wax?

  12. H21 – C7 • 37, 38, 50, 62, 64

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