Science-Backed Solutions! Freshen Your Breath with Hydration, Diet, and Breathing — 5 Cutting-Edge Methods to Eliminate Odor Problems at the Root —

Table of Contents

1. Latest Mechanisms of Halitosis

2. Step 1――The Science of Hydration

3. Step 2――Dietary Reset Techniques

4. Step 3――Nasal Breathing and Its Impact on Sleep and Morning Breath

5. Step 4――Tongue Cleaning & Latest in Mouthwash

6. Step 5――Medical Tests, Quitting Smoking, and Professional Care

7. Conclusion: Tips for Combining the Five Habits

8. Frequently Asked Q&A

9. List of Reference Articles and Papers
   
   

1. Latest Mechanisms of Halitosis

• Over 90% originate from the oral cavity: Anaerobic bacteria metabolizing on the tongue dorsum and between teeth release VSCs (H₂S, CH₃SH, etc.) ncbi.nlm.nih.gov

• Saliva as a natural cleansing agent: Controls bacteria with lysozyme, lactoferrin, and IgA

• Mouth breathing, aging, and medications reduce saliva production → exacerbating halitosis pmc.ncbi.nlm.nih.gov
  
  
  
  

2. Step 1――The Science of Hydration

2-1. Halving Bad Odor with Just Water

Drinking a glass of water or gargling immediately after waking significantly lowers olfactometer indices pubmed.ncbi.nlm.nih.gov

2-2. Practical Guide for Japanese People

• Guideline: Body weight (kg) × 35mL = Total daily fluid intake

• Be cautious of the diuretic effects of caffeine and alcohol

• Aim for 100mL every 60 minutes in the office
  
  
  
  

3. Step 2――Dietary Reset Techniques

3-1. Deodorizing Effects of Chlorophyll

• Chlorophyll in spinach, kale, and ashitaba oxidatively breaks down VSCs infomoney.com.br
  
  
  

3-2. Green Tea Polyphenols

• Catechins immediately inhibit anaerobic bacteria. Clinical data shows a 30% reduction in VSCs pubmed.ncbi.nlm.nih.gov
  
  
  

3-3. NG Foods and Alternative Recipes

• Garlic → Soak in milk before frying

• High-sugar snacks → High-fiber soy bars
  
  
  
  

4. Step 3――Nasal Breathing and Its Impact on Sleep and Morning Breath

• Survey shows 70% of mouth-breathing children report strong morning halitosis pmc.ncbi.nlm.nih.gov

• Posture and Tongue Position Training (MFT) / Sleep Tape Method

• Average 18% improvement in oral chroma values over 3 weeks (domestic dental monitor)
  
  
  
  

5. Step 4――Tongue Cleaning & Latest in Mouthwash

5-1. Tips for Removing Tongue Coating

• Resin scraper + light touch three times

• Be cautious of mucosal damage with fluoride abrasives
  
  
  

5-2. Chlorhexidine vs CPC

• 0.12% chlorhexidine inhibits VSCs for 48 hours

• Long-term use poses a risk of taste disturbance → limit to twice a week
  
  
  
  

6. Step 5――Medical Tests, Quitting Smoking, and Professional Care

• Breath test: Differential diagnosis of Helicobacter pylori and SIBO infomoney.com.br

• Periodontal Treatment and Probiotics

• Methyl mercaptan levels decrease by 30% one week after quitting smoking (University of Bristol, UK)

• Dry Mouth Clinic / Salivary Gland Massage Introduction
  
  
  
  

7. Conclusion: Tips for Combining the Five Habits

• Hydration → Vegetables → Nasal Breathing → Tongue Care → Medical Collaboration in that order to form habits

• Combine with Halitosis Log (Diary App) for Self-Monitoring
  
  
  
  

8. Frequently Asked Q&A

Q1. Is mouthwash alone sufficient?
A. It only provides temporary effects, so pair it with tongue cleaning.

Q2. Can fluids be tea or coffee?
A. Caffeine has strong diuretic effects, so supplement with water at a 1:1 ratio.

Q3. Are breath care supplements effective?
A. Parsley oil soft capsules have been reported to reduce VSCs by 15%, but evidence is limited.

List of Reference Articles and Papers

1. Infomoney "Dieta, hidratação e respiração: 5 soluções científicas para se livrar do mau hálito" (2025-06-24)infomoney.com.br

2. Dehydration as an Etiologic Factor of Halitosis: A Case-Control Study. J Oral Med Pain 2021.journalomp.org

3. Effect of Water on Morning Bad Breath: Randomized Clinical Trial. J Clin Periodontol 2015.pubmed.ncbi.nlm.nih.gov

4. Effect of Green Tea on Volatile Sulfur Compounds in Mouth Air. J Nutr Sci Vitaminol 2008.jstage.jst.go.jp

5. StatPearls "Halitosis" (NCBI, 2023 Update)ncbi.nlm.nih.gov

6. Kara et al. “Association between Halitosis and Mouth Breathing in Children” Int J Pediatr Otorhinolaryngol 2011.pmc.ncbi.nlm.nih.gov