Nutrition Through the Life Cycle (...

6th Edition
Judith E. Brown
ISBN: 9781305628007



Nutrition Through the Life Cycle (...

6th Edition
Judith E. Brown
ISBN: 9781305628007
Textbook Problem

Using information from Question 8, how would you determine the protein needs of JT in Case Study 18.1? Hint: He weighs 235 pounds (107 kg).

The AMDR for protein is 10–35 percent of calories, and the RDA is 0.8 gm/kg body weight. If the average older adult meets the RDA, why is protein a nutrient of concern for older adults?

Summary Introduction

To determine: The protein requirements of Person JT who weighs 235 pounds (107 kg).

Introduction: The amount of nutrient intake for an individual is usually assessed based on the RDA (Recommended Dietary Allowance) and the ADMR (Acceptable Macronutrient Distribution Range) guidelines. RDA values are related to the amount of nutrient and calorie intake per day, while AMDR is based on the percentage of calories of particular macronutrients.


Person JT is a 71-year-old retired computer company executive with height 5 feet 9 inches and weighed 235 pounds at the time of his annual checkup. He visits the health club occasionally, and his food intake is mostly microwaved dinners or pizza and he occasionally drinks beer. His wife died last year, and two years ago, he was diagnosed with type 2 diabetes. His doctor is concerned with his family history of heart diseases.

The recommended dietary allowance (RDA) for protein in older adults is 0.8 g per kg of body weight. When aging, the body loses muscle but the protein requirement of the body remains the same...

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