Opinion Review
Copyright ©The Author(s) 2021. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Dec 7, 2021; 27(45): 7784-7791
Published online Dec 7, 2021. doi: 10.3748/wjg.v27.i45.7784
Humans have intestinal bacteria that degrade the plant cell walls in herbivores
Shunji Fujimori
Shunji Fujimori, Department of Gastroenterology, Chiba Hokusoh Hospital, Nippon Medical School, Chiba 270-1694, Japan
Author contributions: Fujimori S contributed to the writing of this paper.
Conflict-of-interest statement: The author declares no conflict of interest.
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Shunji Fujimori, AGAF, MD, PhD, Director, Department of Gastroenterology, Chiba Hokusoh Hospital, Nippon Medical School, 1715 Kamagari, Inzai-City, Chiba 270-1694, Japan. s-fujimori@nms.ac.jp
Received: May 3, 2021
Peer-review started: May 3, 2021
First decision: June 12, 2021
Revised: June 22, 2021
Accepted: November 24, 2021
Article in press: November 24, 2021
Published online: December 7, 2021
Core Tip

Core Tip: The plant cell wall is mainly composed of cellulose and contains a high number of calories. However, it is classified as an indigestible dietary fiber, and its energy utilization is difficult. Many of the intestinal bacteria found in herbivorous horses that degrade plants are found in humans. Therefore, it is thought that humans can also utilize plant cell walls for energy to some extent. If cell wall-derived dietary fiber can be cooked to make it easier for humans to use, it may compensate for human food shortages.