Tongue Scraping
Episodes covering tongue scraping — protocols, research, and expert discussions.
Using a metal or plastic scraper to remove bacteria, debris, and coating from the tongue surface for fresher breath and oral hygiene
Evidence-Based Take:
Tongue scraping actually has decent evidence. Multiple studies show it reduces volatile sulfur compounds (VSCs) that cause bad breath. It's more effective than tongue brushing for this purpose.
What the Evidence Shows:
- Reduces bad breath: Yes, significantly
- Removes tongue coating: Yes
- Reduces bacteria: Yes, temporarily
- Better than tongue brushing: Studies suggest yes
Honest Assessment:
This is a simple, cheap practice with actual evidence behind it. If you have bad breath or visible tongue coating, tongue scraping is worth adding to your routine. It takes 30 seconds and costs almost nothing.
Science & Mechanisms
Mechanism:
The tongue surface has papillae (small projections) that trap: - Bacteria - Food debris - Dead cells - Fungi
This coating produces volatile sulfur compounds (VSCs) - the main cause of bad breath (halitosis).
Why Scraping Works Better Than Brushing:
- Covers more surface area in one stroke
- More effective mechanical removal
- Studies show greater VSC reduction than brushing
Traditional Practice:
- Jihwa prakshalana in Ayurveda
- Part of daily oral hygiene routine for thousands of years
- Uses metal scrapers (copper, stainless steel)
Research Summary:
- Multiple studies confirm tongue coating correlates with halitosis
- Tongue cleaning reduces VSCs
- Scraping more effective than brushing in studies
- Part of halitosis treatment protocols
Episodes
Ben Greenfield covers what's wrong with modern dentistry & how to fix your mouth, sleep & oral microbiome for good, with dr. eniko loud & the whole health dentistry team (best o...
Andrew Huberman provides a deep dive into oral health, explaining how the mouth serves as a gateway to whole-body health -- with poor oral hygiene linked to increased risk of ca...
Andrew Huberman hosts functional dentist Dr. Staci Whitman for a deep dive into oral health as a pillar of whole-body wellness. They discuss how common oral care products — incl...
Recorded live in Sydney, Australia, this AMA episode covers a wide range of listener questions on health optimization. Huberman begins with practical tips for maintaining health...
Health coach Jen Trebek dives into tongue scraping after it was recommended as a top longevity tip by one of 55 experts interviewed at a longevity summit. She explains the pract...
Dentist Dr. Mark Burhenne (Dr. B) provides a comprehensive masterclass on tongue scraping, covering the who, when, how often, and how of the practice. He explains the deep conne...
Mother-daughter biohacking hosts Alexa and Annabeth interview Suresh Ladva, an aerospace engineer who invented the Toki toothbrush, which integrates a retractable tongue scraper...
Dr. Michael Greger examines the evidence behind tongue scraping in this research-focused episode. He reports that tongue cleaning can reduce the volatile sulfur compounds causin...
In this second part, Dr. Michael Greger explores the cardiovascular benefits of tongue scraping through the enterosalivary nitrate pathway. He explains how dietary nitrate from ...
Hosts Nikita and Mia tackle tongue scraping in their fad-investigating format, where one host researches the topic while the other tries it for a week without doing any backgrou...