Does oil pulling (rinsing your mouth with oil) actually work?
Oil pulling has preliminary indications of a modest effect on gums and plaque, but the evidence is still too weak to recommend it as a full alternative to chlorhexidine. As a supplement to brushing and flossing it is probably not harmful, but do not expect miracles.
Oil pulling has a modest effect on gum health and plaque. A review of 25 studies involving more than 1,100 participants in total shows that oil pulling improves gum inflammation compared with regular mouthwashes, but scores worse on plaque reduction than chlorhexidine (the standard antiseptic mouthwash). The quality of the evidence was rated by the researchers themselves as 'very low', so the precise figures are uncertain.
For bad breath, the picture is mixed. A small study in young people with braces found that after 20 days of oil pulling there were even fewer anaerobic bacteria than with chlorhexidine use. However, a systematic review of 26 studies concluded that there is insufficient evidence that oil pulling genuinely tackles bad breath. Both findings come from studies with a high risk of bias, so no firm conclusions should be drawn from them yet.
Sesame oil appears to be the best-studied option within oral health. In a study of 120 patients with gum disease, sesame oil pulling was just as effective as chlorhexidine for plaque reduction. In patients with type 2 diabetes, an inflammatory marker (CRP) and blood triglycerides also fell; something chlorhexidine did not achieve. This is a single 30-day study, so its relevance over the longer term is unknown.
Coconut oil is popular for oil pulling, but the evidence supporting it for oral health is too sparse for conclusions. An important distinction: eating coconut oil demonstrably raises LDL cholesterol and total cholesterol. That risk does not apply to rinsing and spitting it out, but it does show that coconut oil is not simply 'healthy'.
Most dentists and dental students are sceptical about oil pulling due to the lack of strong evidence, although many acknowledge that it has some potential for gum health and breath. A laboratory study of a special oil pulling product containing essential oils showed promising results for bacterial growth on braces, but the lead researcher has a commercial interest in that product and the study did not test real patients. What does keep your mouth and gums healthy is well established: daily brushing, flossing and fluoride — oil pulling is at most an add-on to that.
All claims based on PMID 37635453, 31710011, 41526321, 33227726, 39791569, 33689936, 41372343, 41350678. Evidence quality in the meta-analysis rated by GRADE as 'very low certainty'. Small sample sizes and short durations dominate the field.
Does mewing really work for a sharper jawline?
There is no clinical evidence that mewing improves the jawline in adults. Serious tongue-exercise therapy does exist, but is intended for functional problems such as abnormal swallowing, not for cosmetic purposes.
What really keeps your mouth and gums healthy?
Daily brushing supplemented with interdental brushes is the best foundation for a healthy mouth; if you have diabetes, regular gum care pays extra dividends for your blood sugar.
Is irritable bowel syndrome a real condition, or is it all in your head?
IBS is not all in your head: researchers measure real physical abnormalities in the gut. Psychological stress can worsen the symptoms, but is not the cause; take your symptoms seriously and discuss them with your doctor.
How harmful is air pollution to your health?
Air pollution is seriously harmful: it increases your risk of lung and heart disease and costs millions of lives worldwide each year. Cleaner air, both through policy and through personal choices such as avoiding busy roads, demonstrably reduces that risk.
What actually helps with chronic low back pain?
Strength and stabilisation exercises have the strongest evidence base for chronic low back pain; if the effect is insufficient, anti-inflammatory drugs are the first pharmacological step, but opioids and surgery can almost always be avoided.
Does having a pet benefit your health and longevity?
A pet can contribute to more physical activity, less loneliness, and a better sense of wellbeing, but whether it also extends your lifespan has not yet been demonstrated. If you are considering a pet primarily for your health, a dog is the best-supported choice, but weigh the practical burdens as well.