NUSCTX 10 Lecture Notes - Lecture 7: Confounding, Saturated Fat, Bone Density
13 Apr 2017
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Document Summary
Fat nutrition guidelines: for many years, it was generally accepted that diets high in saturated fat and cholesterol increased cvd risk. Reflects in the dgas; scientists now question this association and the 2015 dgas no longer recommend reducing dietary cholesterol. Conducting nutrition research is necessary to help us understand how nutrients affect various physiological processes in the body and at what amounts. Also used in the development of therapies that counteract or prevent nutrition-related diseases. Quantifiable data: measurable data that can be consistently repeated. Appropriate experimental subjects: in order to be useful, the right population must be studied. Number of subjects depends on the type of study and the effect being tested - rare events, such as heart attacks, require a larger population. Proper controls: controls are used to ensure that each variable studied can be compared with a known situation. Control group acts as a standard comparison for the treatment being tests; prevents confounding factors like the placebo effect.
