Could Your Protein Shake Be Affecting Your Oral Health? New Research Raises Concerns for Gym-Goers
- Julian Simpson
- Jun 10
- 5 min read
Written by Dr Julian Simpson — Chiropractor with 15+ years of experience, Board Member of the Chiropractic Australia Research Foundation, and author/reviewer of 800+ health articles.
Could Your Protein Shake Be Affecting Your Oral Health? New Research Raises Concerns for Gym-Goers
The Hidden Link Between Protein Supplements and Dental Health
For many Australians, protein supplements have become a daily part of training. Whether you're chasing strength gains, building muscle, or supporting recovery after a workout, protein powders and shakes are often considered a healthy addition to an active lifestyle.
However, new research has uncovered a surprising connection between protein supplementation and oral health, suggesting that regular use of protein supplements may increase the risk of tooth decay and gum disease.
At Health Wise Chiropractic, we help patients across Sunbury, Melton and surrounding communities optimise their health from the inside out. While exercise is one of the best things you can do for your wellbeing, it's important to understand how nutrition and lifestyle habits can affect your overall health—including your teeth and gums.
Tooth Decay Remains One of the World's Most Common Health Conditions
Despite being largely preventable, tooth decay remains one of the most widespread chronic health conditions globally.
Research shows:
Almost every adult worldwide experiences tooth decay at some point in their life.
The World Health Organization estimates that over 621 million adolescents globally are affected by oral diseases.
Around 78.7% of athletes have been identified as being at high risk of dental caries (tooth decay).
Studies have found that approximately 49.1% of athletes experience dental decay.
While most people associate dental problems with sugary foods and poor brushing habits, sports nutrition products may also play a role.
What Did the Research Find?
Why Could Protein Supplements Increase Tooth Decay?
Many protein supplements contain added carbohydrates and sugars such as:
Maltodextrin
Glucose
Dextrose
Fructose
These ingredients can create an environment where harmful bacteria thrive.
When oral bacteria metabolise these sugars, they produce acids that gradually erode tooth enamel. Over time, this process can lead to cavities and tooth decay.
Additionally, many athletes sip protein shakes over extended periods or consume them multiple times throughout the day, increasing the amount of time teeth are exposed to sugar and acid.
The Role of Saliva in Protecting Your Teeth
One of the most interesting findings from the study was that protein supplement users had significantly lower saliva flow rates.
Saliva is one of the body's most important natural defence mechanisms because it helps:
Wash away food particles
Neutralise harmful acids
Control bacterial growth
Remineralise tooth enamel
When saliva production decreases, the risk of tooth decay rises substantially.
For active individuals, dehydration during training may further reduce saliva production, increasing the likelihood of oral health issues.
What About Gum Health?
The study also found significantly higher rates of bleeding gums among supplement users.
Bleeding gums are often an early sign of gingivitis, which is inflammation of the gums caused by bacterial plaque accumulation.
Left untreated, gingivitis can progress to more serious periodontal disease, which has been linked to numerous health concerns including:
Chronic inflammation
Cardiovascular disease
Diabetes complications
Poor recovery and performance
Why This Matters for Active Australians
Many people assume that if they exercise regularly, their health risks are lower across the board.
While exercise offers enormous benefits, this research highlights that certain dietary habits associated with training and bodybuilding may have unintended consequences.
If you're consuming:
Protein powders
Recovery shakes
Meal replacement supplements
High-carbohydrate sports drinks
it may be worth taking additional steps to protect your oral health.
Practical Tips to Protect Your Teeth While Using Protein Supplements
1. Stay Hydrated
Adequate hydration helps maintain healthy saliva production.
Aim to drink water consistently throughout the day, particularly before, during and after exercise.
2. Rinse Your Mouth After Protein Shakes
Rinsing with water can help remove residual sugars and reduce acid exposure.
3. Avoid Sipping Shakes for Long Periods
Consume protein drinks in a shorter timeframe rather than slowly sipping over several hours.
4. Maintain Excellent Oral Hygiene
Ensure you:
Brush twice daily
Floss regularly
Attend routine dental check-ups
5. Prioritise Whole Food Protein Sources
Where possible, obtain protein from nutrient-dense foods such as:
Lean meats
Fish
Eggs
Greek yoghurt
Legumes
Nuts and seeds
These foods generally expose teeth to fewer rapidly fermentable carbohydrates than many commercial supplements.
Supporting Your Overall Health Through Exercise
Maintaining good musculoskeletal health helps support consistent physical activity and healthy lifestyle habits.
At Health Wise Chiropractic, we regularly help patients in Sunbury and Melton stay active through evidence-based care for:
Back pain
Neck pain
Sports injuries
Joint stiffness
Postural concerns
Exercise-related aches and pains
Exercises to Support Training Recovery
Chin Tucks
Helps improve neck posture during gym training and desk work.
How to perform:
Sit upright.
Gently draw your chin backwards.
Hold for 5 seconds.
Repeat 10 times.
Thoracic Extensions
Supports upper back mobility.
How to perform:
Place a foam roller across your upper back.
Support your head with your hands.
Slowly extend backwards over the roller.
Repeat 10 repetitions.
Hip Flexor Stretch
Counteracts prolonged sitting and improves movement efficiency.
How to perform:
Kneel on one knee.
Shift your weight forward.
Feel a stretch through the front of the hip.
Hold for 30 seconds each side.
Calf Stretch
Improves lower limb mobility and recovery.
How to perform:
Place hands against a wall.
Step one foot backwards.
Keep the heel on the floor.
Hold for 30 seconds.
The Bottom Line
Emerging research suggests that regular protein supplement use may be associated with increased tooth decay, bleeding gums and reduced saliva production in resistance-trained men.
This doesn't mean you need to stop exercising or abandon your fitness goals. Instead, it highlights the importance of balancing performance nutrition with good oral health habits.
If you're experiencing muscle or joint pain that is limiting your ability to train, the team at Health Wise Chiropractic is here to help.
Looking for a Chiropractor in Sunbury or Melton?
Health Wise Chiropractic provides evidence-based chiropractic care, spinal health assessments and rehabilitation strategies to help you move better and stay active.
Book an appointment today and discover how our team can help support your health, fitness and long-term wellbeing.
How Chiropractic Care May Help
At Health Wise Chiropractic, we take a comprehensive approach to posture-related care.
Treatment may include:
We focus on addressing both the symptoms and the underlying biomechanical stress contributing to neck dysfunction.
About the Author
Dr Julian Simpson is an Australian chiropractor with over 15 years of experience in musculoskeletal healthcare and rehabilitation.
He is a Board Member of the Chiropractic Australia Research Foundation and has reviewed and written more than 800 evidence-based health articles focused on spinal health, rehabilitation, sports injuries and conservative care approaches.
His treatment focus includes:
Chiropractic adjustments
Sports chiropractic
Massage therapy
Shockwave therapy
Laser therapy
Non-surgical spinal decompression
Dr Simpson provides patient care through Healthwise Chiropractic, serving communities including Sunbury, Melton, Diggers Rest and surrounding regions.
Abdulwhid SB, Qasim AA. Dental Caries and Salivary Health in Bodybuilders vs. Non-Bodybuilders: A Comparative Study. J Int Soc Prev Community Dent. 2026 Apr 29;16(2):197-207. doi: 10.4103/jispcd.jispcd_180_25. PMID: 42253905; PMCID: PMC13241142.
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