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Nutrition Through the Life Cycle (...

6th Edition
Judith E. Brown
ISBN: 9781305628007

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BuyFindarrow_forward

Nutrition Through the Life Cycle (...

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

Which of the following factors contributes to increased iron needs among adolescents?

  1. a. Increased growth velocity during puberty
  2. b. Low dietary intake of iron
  3. c. Onset of menarche
  4. d. All of the above

Summary Introduction

Introduction: Iron is an essential nutrient that is required by the human body to produce haemoglobin in red blood cells. It functions in the transport of oxygen in the body. Deficiency of iron can lead to anemia.

Explanation

Reason for the correct answer:

Option d. is given as “All of the above”.

Iron is an essential mineral required by the human body. It is an essential component of the red blood cells and is required for the normal growth and development of an individual, and an increased growth velocity during puberty. A decline in the iron stores of the body results in an increased need of iron. Therefore, low dietary intake of iron which can result in decreased iron stores and onset of menarche characterized by blood loss are the factors that contribute to increased iron needs.

Hence, option d. is correct.

Reasons for the incorrect answers:

Option a. is given as “Increased growth velocity during puberty”.

Puberty is associated with a growth spurt which increases the nutritional needs of essential nutrients including iron in the body. However, other factors also contribute to increased iron needs among adolescents...

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