Essentials of Human Anatomy & Physiology (12th Edition)

Published by Pearson
ISBN 10: 1292216239
ISBN 13: 978-1-29221-623-2

Chapter 14 - The Digestive System and Body Metabolism - Review Questions - Page 536: 50

Answer

Vitamin K is produced by intestinal bacteria. Antibiotics have an bactericidal effect which kills the bacteria. Long use of antibiotics can cause all intestinal bacteria to die due to which deficiency of vitamin k can occur.

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