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Nutrition Through The Life Cycle

7th Edition
Brown + 1 other
ISBN: 9781337919333

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FindFindarrow_forward

Nutrition Through The Life Cycle

7th Edition
Brown + 1 other
ISBN: 9781337919333
Textbook Problem
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Vitamin B12 deficiency can cause irreversible neurological damage. List at least three reasons why an older adult might have low vitamin B12 levels.

Summary Introduction

To list: At least three reasons why an older adult might have low vitamin B12 levels.

Introduction: Vitamin B12 also known as cobalamin is an essential vitamin for development and function of nerve cells and the nervous system. It also helps in the production of red blood cells. Vitamin B12 deficiency can cause neurological diseases and anemia in older adults.

Explanation

The levels of vitamin B12 fluctuate throughout the life and are dependent on the nutrition but are prone to decrease in old age. The reasons why in old age absorption of vitamin B12 tend to decrease are as follows:

  1. 1. Astrophic gastrities is a stomach disease characterised by inflammation of the stomach mucous membrane, which decreases vitamin B12 uptake.
  2. 2. Bacterial growth in stomach leads to decreased secretion of pepsin and hydrochloric acid in order to digest the ingested food to absorb vitamin B12...

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