Nutrition, Lipids

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

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

Fat or Oil Foods Margarine Butter, cream, milk –80%, 35%, % Mayonnaise – 80% Chocolate - ~30%

Fake Fats Why fake fats?

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

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

Anabolic steroid Andro-6

Cholesterol Structure:

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

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

H21 – C7 37, 38, 50, 62, 64