Fats and Oils

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Fats and Oils
  1. Fats protect organs from shock/injury
    1. Promote healthy skin
      1. 9 Calories/gram
        1. Most concentrated energy source
          1. Second only to carbs
            1. Keeps you "full" longer
          2. Fat - nutrient necessary for body insulation, energy and protection
            1. Oil - fat liquid at room temperature
              1. MyPyramid has an oils group, MyPlate does not
              2. Lipids - family of chemical compounds, includes fats/oils
                1. Cholesterol - fat-like substance made from glucose/saturated fat
                  1. Necessary for normal body function
                    1. Produces hormones/bile
                      1. Too much is linked to heart disease
                      2. HDL - high density lipoprotein
                        1. Removes excess cholesterol from liver
                        2. LDL - low density lipoprotein
                          1. Can clog arteries
                        3. 4 vitamins are fat-soluable
                          1. Vitamins A, D, E, and K
                          2. Fatty acids - chemical chains that make up fats
                            1. Saturated fats
                              1. Usually from animal sources, solid at room temp.
                                1. Cheese, milk, coconut oil
                                2. Raises HDL/LDLs in blood
                                3. Polyunsaturated fats
                                  1. Found in veggies and fish, semi-liquid at room temp.
                                    1. Soybean oil, cottonseed oil, corn oil
                                    2. Lower HDL/LDLs in blood
                                    3. Monounsaturated fats
                                      1. Semi-solid/liquid at room temp.
                                        1. Olives, avocados
                                        2. Raise HDL/lowers LDL
                                        3. Short/long chains
                                        4. Trans fats - modified unsaturated fat molecule, made into saturated fat molecule
                                          1. Visible fat - fat you can see on meat, etc. (on steak)
                                            1. Hydrogenation - making a liquid fat solid
                                              1. Butter - milkfat churned into a solid
                                                1. Margarine - Butter subst. made from plant fat
                                                  1. Lard - extracted animal fat
                                                    1. Vegetable shortening - hydrogenated vegetable oil
                                                      1. Vegetable oil - oils from plant sources
                                                        1. Rancid - decomposing fats
                                                          1. Animal fats provide more flavor than plant fats
                                                            1. Store tightly
                                                              1. Combustable
                                                                1. How to put out a grease fire
                                                                  1. Turn off heat
                                                                    1. Remove oxygen source
                                                                      1. Another pot, baking pan, baking soda, fire extinguisher
                                                                    2. NO WATER
                                                                    3. Type of fats consumed contribute to weight gain more than amounts of fat eaten
                                                                      1. Made of triglycerides
                                                                        1. Chemical makeup/shape changes fat properties

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