NTR 301 1st edition Lecture 5 Outline of Last Lecture I DRIs A What are they and what do they consist of B Why they were created C How have they changed Outline of Current Lecture I Protein Fiber Mineral and Vitamin DRIs A How are they calculated B How are they utilized C What is Marginal Current Lecture How are they calculated 1 Average requirements are determined for individual age and sex groups An amount is added to include individual ranges DRIs are an average estimate for the population this average means it includes 97 5 of any group A normal distribution curve represents this 97 5 or the majority of individuals The downside of using an average is that it will not cover every individual s needs How are they utilized The DRI is a value that should be surpassed and is not meant to be a target value What is marginal Marginal intake levels for protein fiber minerals and vitamins less than or equal to 60 of the DRI These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute Consuming marginal levels of certain nutrients has been associated with an increase for chronic disease risk These factors contribute to marginal intake levels in the US Americans do not eat enough fruits and vegetables these contain many micronutrients Processing removes micronutrients Lack of education access
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