Nitric Oxide
Your Results
Below range
Your salivary nitric oxide level is lower than optimal. Nitric oxide plays a role in blood flow, immune response, and oral tissue health. Lower levels may reflect changes in oral bacteria or overall health factors that influence nitric oxide production.
At-home Recommendations
Follow these evidence-based practices to maintain optimal oral health
Daily Support
Brush twice daily for two full minutes using a soft or electric toothbrush
Clean between the teeth daily with floss, interdental brushes, or a water flosser
Clean the tongue gently to help support nitrate-reducing bacteria
Avoid frequent use of strong antibacterial mouthwashes unless directed by your dental provider
These may reduce beneficial bacteria involved in nitric oxide production.
Stay well hydrated to support saliva flow and oral balance
Replace toothbrush or brush heads regularly
Enhanced Support
Increase intake of nitrate-rich vegetables (such as leafy greens, beets, arugula, and spinach)
Support a balanced oral microbiome through a whole-food, fiber-rich diet
Limit highly processed foods and excess sugars that may disrupt oral bacterial balance
Avoid tobacco and vaping
Moderate alcohol intake, especially frequent use of alcohol-containing mouthwashes
Support nitric oxide production with regular physical activity, quality sleep, and stress management
Goal
Support nitric oxide production by maintaining beneficial oral bacteria and promoting a balanced oral environment.
What to Expect at Dental Visits
Your dental provider may review your oral hygiene products and habits, especially mouthwash use, and evaluate other biomarkers and clinical findings. Monitoring over time helps determine if nitric oxide levels improve with adjustments to daily habits.
About the Marker
Nitric oxide is a naturally occurring molecule that supports circulation, immune response, and balance within the oral environment. In the mouth, certain beneficial bacteria help produce nitric oxide from dietary nutrients, which can contribute to tissue health and overall oral function.
Changes in nitric oxide levels may reflect differences in oral bacterial activity, lifestyle factors, or overall health. Your results provide helpful insight that you and your medical or dental provider can use to better understand your oral environment and guide personalized care.
What influences nitric oxide?
Several factors can affect nitric oxide levels in your saliva. This marker reflects interactions between oral bacteria, diet, lifestyle, and overall health. Understanding these influences helps you and your medical or dental provider identify possible contributors and supportive strategies.
Mouth Breathing
Habitual mouth breathing may alter microbiome balance, which can influence nitric oxide production
Diet
Foods rich in natural nitrates (such as leafy greens, beets, celery, and certain vegetables) can influence nitric oxide production
Antibacterial Mouthwash
Frequent use of strong antibacterial mouth rinses may alter beneficial oral bacteria that help produce nitric oxide, which can influence nitric oxide levels in some individuals.
Alcohol Use
Overconsumption of alcohol may affect nitric oxide pathways by influencing circulation, inflammation, and oral microbiome balance.
Oral health and hygiene
The balance of oral bacteria and gum health plays an important role
Physical activity
Exercise can affect circulation and nitric oxide pathways
Health conditions
Cardiovascular, metabolic, and respiratory factors may influence levels
Medications
Some medications related to blood pressure, heart health, or circulation may affect nitric oxide production
Age
Nitric oxide metabolism may change across life stages
Stress
Physical and emotional stress can influence immune and vascular responses
Environmental exposures
Air quality and environmental factors may play a role
Genetics
Individual biological differences can contribute to variation
Time of day
Levels may vary depending on when the sample is collected
Because nitric oxide can reflect both oral and systemic influences, results are best interpreted in the context of your overall health and other biomarkers. Your healthcare providers can help guide personalized recommendations based on your results.
Why support healthy nitric oxide levels?
Nitric oxide plays an important role in circulation, immune function, and inflammatory balance. It helps regulate blood vessel function and supports healthy blood flow throughout the body, including the gums and oral tissues.
Healthy nitric oxide activity is associated with:
- Normal blood vessel flexibility and circulation
- Oxygen delivery to tissues and muscles
- Inflammatory balance and immune response
- Oral tissue health and healing
Because certain oral bacteria help produce nitric oxide from foods you eat, the oral microbiome is connected to whole-body circulation and cardiovascular wellness. Supporting oral health may also support these broader systems.
If nitric oxide levels are lower, this information can help you and your medical or dental provider explore factors such as oral health, nutrition, lifestyle habits, and overall health status to guide personalized care.
Oral–systemic connections
Nitric oxide is a signaling molecule that helps regulate blood flow, oxygen delivery, immune response, and inflammatory balance. In the mouth, certain beneficial bacteria help convert dietary nutrients into nitric oxide, linking the oral microbiome with whole-body circulation and vascular health.
When nitric oxide levels are lower, it may reflect changes in oral bacterial balance, lifestyle factors, or overall health. Nitric oxide results alone do not diagnose disease but provide insight into how the body supports circulation and inflammatory regulation. Your results should be interpreted alongside other biomarkers and clinical findings by your medical or dental provider.
Why Monitoring Matters
Tracking nitric oxide provides insight into oral microbial activity and vascular support. This information helps you and your medical or dental provider identify contributing factors and guide personalized recommendations.
Goal
Support healthy circulation, microbial balance, and inflammatory regulation to promote both oral and overall wellness.
What Lower Levels May Be Associated With
Research suggests nitric oxide pathways are connected with several aspects of health, including:
Cardiovascular health, Oxygen delivery & Inflammatory balance
- •Cardiovascular health — blood vessel function and circulation
- •Oxygen delivery and physical performance — tissue oxygenation and recovery
- •Inflammatory balance — immune response and tissue healing
These relationships are complex and do not mean one condition causes another, but they highlight the importance of maintaining a balanced oral and systemic environment.
Respiratory health & Brain and vascular health
- •Respiratory health — airway function and oxygen exchange
- •Brain and vascular health — emerging research on circulation and cognitive wellness
These relationships are complex and do not mean one condition causes another, but they highlight the importance of maintaining a balanced oral and systemic environment.
Key Takeaway
Lower nitric oxide levels do not mean disease is present. They highlight an opportunity to evaluate oral health, nutrition, lifestyle, and overall health factors with your healthcare providers to support long-term wellness.