Quick Answer: Oil pulling has some evidence supporting modest benefits—small studies show it can reduce harmful oral bacteria, decrease plaque, and improve mild gingivitis. Coconut oil is the best choice. However, the evidence is limited and the ADA does not recommend it as a substitute for brushing, flossing, or mouthwash. Oil pulling is a harmless supplement to standard oral care—not a replacement for it.
Oil pulling has gone from an ancient Ayurvedic remedy to a modern wellness trend, promoted by influencers and natural health advocates as a cure-all for bad breath, cavities, gum disease, and even systemic health issues. But what does the actual science say?
Let's separate the evidence-based benefits from the hype.
What Is Oil Pulling?
Oil pulling (called "kavala" or "gandusha" in Ayurvedic medicine) is the practice of swishing edible oil in your mouth for 10–20 minutes, then spitting it out. It originated in India over 3,000 years ago as part of traditional Ayurvedic health practices.
The theory is that swishing oil attracts and traps bacteria, toxins, and debris from the oral cavity. Oil is lipophilic (fat-attracting), and since bacterial cell membranes are made of lipids, the oil may bind to and pull bacteria away from tooth and gum surfaces.
How the Process Works
- Emulsification: As you swish, the oil mixes with saliva and becomes thinner and milky white—this is emulsification, indicating the oil is interacting with oral fluids
- Mechanical cleaning: The swishing action physically dislodges food particles and loose debris
- Saponification: Some researchers propose that bicarbonate in saliva reacts with the oil to create a soap-like cleansing effect
- Antimicrobial action: Certain oils (especially coconut oil) have inherent antimicrobial properties
What the Science Actually Says
Several clinical studies have examined oil pulling. Here's an honest look at the evidence:
Supported by Evidence
- Reduces Streptococcus mutans: Multiple studies show oil pulling with coconut or sesame oil significantly reduces S. mutans—the primary bacteria responsible for tooth decay. One study found a comparable reduction to chlorhexidine mouthwash after 2 weeks
- Reduces plaque: Several trials show statistically significant plaque reduction after 1–4 weeks of daily oil pulling, comparable to mouthwash in some studies
- Improves mild gingivitis: Oil pulling reduced gingival index scores (a measure of gum inflammation) in multiple studies, comparable to chlorhexidine in some trials
- Reduces bad breath: By lowering bacterial load, oil pulling may reduce halitosis (limited but positive evidence)
Not Supported by Evidence
- Whitens teeth: No controlled study has demonstrated meaningful teeth whitening from oil pulling
- Prevents cavities: While it reduces cavity-causing bacteria, there's no direct evidence it prevents cavities better than fluoride
- "Detoxification": Claims that oil pulling removes "toxins" from the body have no scientific basis
- Cures systemic diseases: Claims about treating diabetes, heart disease, asthma, and headaches are unsubstantiated
Important caveat: Most oil pulling studies are small (20–60 participants), short-term (2–6 weeks), and conducted in India. Many have methodological limitations. Larger, longer, and more rigorous studies are needed before drawing definitive conclusions.
Best Oils for Oil Pulling
| Oil | Key Properties | Taste | Rating |
|---|---|---|---|
| Coconut oil | 50% lauric acid (antimicrobial), anti-inflammatory | Pleasant, mild | Best overall |
| Sesame oil | Traditional Ayurvedic choice, antioxidant properties | Nutty, mild | Traditional pick |
| Sunflower oil | High in linoleic acid, used in several clinical studies | Neutral | Good alternative |
| Olive oil | Anti-inflammatory, some antimicrobial properties | Strong flavor | Acceptable |
Our recommendation: Use virgin coconut oil. It has the strongest antimicrobial properties (due to lauric acid), the most pleasant taste for swishing, and the most research supporting its use for oil pulling. Choose organic, cold-pressed, unrefined coconut oil for the highest quality.
How to Oil Pull: Step-by-Step
If you want to try oil pulling, here's the proper technique based on traditional practice and research protocols:
Step-by-Step Instructions
- Step 1: Do this first thing in the morning on an empty stomach, before brushing
- Step 2: Place 1 tablespoon of coconut oil in your mouth (if solid, let it melt for a moment)
- Step 3: Swish gently but thoroughly for 15–20 minutes—push and pull the oil between teeth, around gums, and across all surfaces. Don't gargle
- Step 4: Spit the oil into a trash can (not the sink—oil clogs pipes)
- Step 5: Rinse your mouth with warm water
- Step 6: Brush and floss as normal
Practical Tips for Beginners
- Start with 5 minutes and gradually increase to 15–20 minutes as your jaw muscles adapt
- Do something else while pulling—shower, get dressed, check your phone. The time passes quickly
- Don't swallow the oil—it contains bacteria pulled from your mouth
- Use less oil if needed—start with 1 teaspoon if 1 tablespoon feels like too much
- Don't swish too vigorously—gentle, consistent swishing is more sustainable than aggressive churning that tires your jaw
Oil Pulling vs Mouthwash
| Factor | Oil Pulling | Mouthwash |
|---|---|---|
| Time required | 15–20 minutes | 30–60 seconds |
| Bacteria reduction | Moderate | Strong (antiseptic types) |
| Cavity prevention | Indirect (reduces bacteria) | Direct (fluoride strengthens enamel) |
| ADA recommended | No | Yes (certain brands) |
| Clinical evidence | Limited, small studies | Extensive, large studies |
| Chemical-free | Yes | No (active ingredients) |
| Cost | ~$0.10–$0.25/session | ~$0.05–$0.15/use |
Risks and Side Effects
Oil pulling is generally very safe, but there are a few considerations:
- Jaw soreness: Common when starting out, especially if swishing too aggressively. Ease in gradually
- Upset stomach: If you accidentally swallow oil containing bacteria. Spit thoroughly
- Lipoid pneumonia: Extremely rare, but theoretically possible if oil is accidentally inhaled into the lungs. Don't gargle—just swish
- Allergic reaction: Rare, but possible if you have a coconut or tree nut allergy. Use sunflower oil instead
- Plumbing damage: Coconut oil solidifies in cold pipes. Always spit into a trash can
Critical warning: Do NOT use oil pulling as a substitute for dental treatment. If you have cavities, gum disease, infections, or dental pain, see a dentist. Oil pulling cannot treat established dental disease—delaying proper treatment can lead to tooth loss, abscesses, and serious infections.
The Bottom Line
- Modest benefits: Oil pulling can reduce oral bacteria, plaque, and mild gum inflammation
- Not a replacement: It cannot replace brushing, flossing, or fluoride mouthwash
- Best oil: Virgin coconut oil (antimicrobial lauric acid, pleasant taste)
- Proper technique: 15–20 minutes of gentle swishing, spit into trash, then brush normally
- Unproven claims: No evidence for teeth whitening, "detox," or curing systemic diseases
- Harmless to try: If you enjoy it and it supplements (not replaces) standard oral care, there's no downside
Oil pulling is a low-risk practice with some genuine (if modest) oral health benefits. If you find it pleasant and it motivates you to think more about your oral health, it can be a worthwhile addition to your routine. Just don't expect miracles—and never skip the basics of brushing, flossing, and regular dental checkups.
Disclaimer: This article is for informational purposes only and does not constitute dental or medical advice. Consult your dentist before adding oil pulling to your oral care routine, especially if you have existing dental conditions.