Nutrition: Concepts and Controversies
Nutrition: Concepts and Controversies
13th Edition
ISBN: 9781133603184
Author: Frances Sizer, Ellie Whitney
Publisher: Cengage Learning
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Chapter 2, Problem 2SC
Summary Introduction

Introduction:

The experts from the United States and Canada set the Dietary Reference Intakes (DRI). It sets the values for all the macronutrients like carbohydrates, proteins, fats, and micronutrients like vitamins and minerals.

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What does the Tolerable Upper Intake Level (UL) of a nutrient represent? a. The maximum amount allowed for fortifying a food b. A number calculated by taking twice the RDA for three times the AI c. The maximum allowable amount available in supplement form d. The maximum amount from all sources that appears safe for most healthy people and beyond which there is increased risk of adverse health effects
Imagine that you are standing in a pharmacy comparing the Supplement Facts panels on the labels of two supplement bottles, one a “complete multivitamin” product and the other marked “high potency vitamins.” What major differences in terms of nutrient inclusion and doses might you find between these two products? What differences in risk would you anticipate? If you were asked to pick one of these products for an elderly person with a poor appetite, which would you choose? Justify your answer.
A study is done to examine whether there is an association between the daily use of vitamins C & E and risk of coronary artery disease (heart attacks) over a 10 year period. When subjects who took both vitamins were compared to those who took not vitamins at all, the risk ratio was found to be 0.70. Which of the following is a correct interpretation of this finding? Answer and explain. a. The incidence of coronary artery disease in those who take vitamins C & E daily is 0.70 (or 70%) b. Those who take vitamins C & E daily have 0.7 times the risk of heart attack compared to those who do not take vitamins c.The risk difference in this study is 70 per 100 vitamin users over ten years d. The odds ratio in this study is 70 per 100 vitamin users over ten years e. The risk difference in this study is 0.70 per 100 vitamin users over ten years
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