Unlock the Secret to Better Gut Health: It Starts with Your Saliva
The affordable approach to a healthier gut and happier digestive system

Did you know that the simple act of chewing is the foundation of good digestion and gut health? Most of us don’t give much thought to saliva or chewing, but these first steps of digestion play a crucial role in maintaining a healthy gut microbiome and optimizing nutrient absorption.
In this post, we’ll explain why chewing and saliva are essential for digestion, how they impact your gut microbiome, and provide actionable tips to improve your chewing habits for better gut health. Let’s dive in to uncover how this overlooked aspect of eating can transform your health!
Key Takeaways:
- Chewing is the first (and vital!) step in digestion – it breaks down food into smaller pieces and allows saliva to start digesting carbohydrates before food even reaches your stomach.
- Saliva is more powerful than you think – it contains enzymes, beneficial bacteria, and protective compounds that support oral and gut health.
- Proper chewing supports a healthier gut microbiome by improving nutrient absorption and reducing digestive issues like bloating and indigestion.
- Factors like dehydration, medications, stress, aging, and lifestyle choices can impact saliva production, which in turn affects digestion.
- Simple habits like slowing down at meals, staying hydrated, and eating mindfully can make a big difference in your digestive wellness.
How Chewing Kickstarts Digestion
Chewing breaks food into smaller pieces, increasing the surface area for digestive enzymes to work. Saliva, the liquid produced during chewing, contains enzymes like amylase, which begin breaking down carbohydrates to make them more suitable for the stomach. Taking longer to chew gives the enzymes in saliva time to begin the process of breaking down carbohydrates, a very important part of digestion. Rapidly swallowing partially chewed food, followed by large quantities of liquids, undermines the function of saliva, so your stomach receives chunks of food rather than smaller particles. Proper chewing reduces the risk of bloating, indigestion, and malabsorption, setting the stage for a smoother digestive process.
Saliva: Your Secret Digestive Superpower
Saliva isn’t just about keeping your mouth moist—it’s a critical component of digestion:
It protects your teeth and esophagus because it is slightly alkaline with high concentrations of calcium and phosphate ions, making it a perfect milieu for your teeth.
It contains antibacterial properties as well as beneficial bacteria that help control harmful bacteria in the mouth. Studies show that well-chewed food is digested more efficiently, allowing nutrients to feed beneficial gut bacteria, promoting a balanced microbiome. When food isn’t chewed properly, larger particles can ferment in the gut, potentially causing dysbiosis (an imbalance in the gut microbiome) and inflammation.
It signals the stomach to prepare for digestion by stimulating gastric juice production.
Inadequate saliva production, often linked to dehydration or stress, can negatively affect digestion and gut health.
Factors Influencing Saliva Production
Hydration Levels
Dehydration reduces saliva production due to insufficient body fluids.
Medications
Certain medications can reduce saliva production (dry mouth or xerostomia):
- Antihistamines
- Antidepressants
- Blood pressure medications
- Diuretics
Health Conditions
- Autoimmune disorders: Conditions like Sjögren’s syndrome can impair saliva production.
- Diabetes: May cause dry mouth due to high blood sugar levels.
- Parkinson’s disease and stroke: Can affect the salivary glands or nerves.
Hormonal Changes & Aging
Hormonal fluctuations during pregnancy, menopause, or menstrual cycles can alter saliva production. Saliva production tends to decrease naturally with age.
Lifestyle Choices
- Smoking or chewing tobacco: Can damage salivary glands.
- Alcohol consumption: Often leads to dehydration and reduced saliva.
- Diet: Acidic or spicy foods can either stimulate or irritate salivary glands.
- Stimulation: Chewing gum (sugar-free) or eating stimulates saliva, as well as eating sour or tangy foods.
- Oral Hygiene: Poor oral hygiene or conditions like infections and blocked salivary glands can interfere with saliva flow.
Stress and Anxiety
Stress can temporarily decrease saliva production, leading to dry mouth.

Tips to Boost Digestion Through Chewing
If you’re guilty of rushing through meals, here’s how you can slow down and support your gut health:
- Avoid skipping meals or eating a meal when you are famished. Intense hunger can increase stress, impulsivity related to food choices, portion size and eating speed. Creating a meal schedule to allow for regular eating time windows can assist reduce digestive strain.
- Ground yourself before a meal by taking 3 deep breaths
- Imagine savouring each bite like you are in a commercial for that food! Try to use your taste buds to pick out the specific ingredients and flavours. Think about where the morsel of food is in your mouth and aim to break food down to a paste-like consistency.
- Use smaller utensils to help with taking smaller bites that are easier to chew
- Stay hydrated to ensure sufficient saliva production.
- If avoiding distractions while eating is difficult, try to take checkpoints in your meal to assess your hunger and mental state
Chewing and saliva may seem like small details, but they are powerful allies in promoting better digestion and a thriving gut microbiome. By taking the time to chew your food properly, you’re not only improving nutrient absorption but also supporting the balance of your gut bacteria, which is key to overall health.
Ready to transform your gut health?
A Registered Dietitian on our team can help you take the guesswork out of your health by providing personalized guidance on supplements, balanced food choices, and lifestyle strategies. Whether you’re looking to boost your energy, manage a health condition, or simply feel your best, we’re here to support you with a plan that works for your unique needs.
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Paige Thomsen
women’s health, emotional eating, diabetes, heart health, digestive health, sports nutrition, eating disorders, and mental health
Some of the things we love about Paige is her infectious smile and enthusiasm alongside her outgoing social nature and welcoming demeanor. She empowers long term habit change by helping her clients create routines that respect their own unique definition of health, values, and preferences (rather than unrealistic regimes fueled by fear, guilt and will power)

