NUTRITN 130 Lecture Notes - Lecture 10: Canola, Cholesterol, Walnut Oil
Document Summary
We need fats in our diet because they provide energy. Much of used during rest comes from fat. Fat is used for energy during exercise. Fat is also used for energy storage. Vitamins a,d,e, and k are soluble in fat. Fat is required for the transport of vitamins adek. Dietary fat helps food taste good because it contributes to texture and flavor. Fats are more energy dense than carbohydrates or protein. Most of the fat in our diet (95%) that we eat is as triglyceride. Short (<6 carbons), medium (6-12 carbons), long (>13 carbons) Saturation = every carbon has hydrogen on it so they can stack on top of each other. The hydrogen atoms at the unsaturated region can be arranged in different positions. Essential fatty acids - cannot be synthesized in the body and must be obtained in the diet: They are precursors to biological compounds called eicosanoids, which regulate cellular function. Linoleic acid (omega-6) vegetable and nut oils.
