Cocos nucifera · food
Evidence tier: insufficient
Natural moisturiser and skin barrier support with antimicrobial properties, medium chain fatty acids (MCT) support skin hydration and may help with mild eczema and dry skin
Coconut oil is roughly half lauric acid, a medium to long chain saturated fatty acid that disrupts the membranes of some bacteria in a dish, which is where the antimicrobial and oil pulling claims come from. Applied to skin it works as an occlusive, sitting on the surface and slowing water loss, which is the ordinary mechanism of every emollient. Eaten, its saturated fat content raises LDL, which is not a hypothesis but a measured effect across sixteen trials.
Insufficient, and unusually for this list there is a documented HARM to weigh against a benefit that was never established. The harm is the clearest fact about coconut oil: the meta analysis of 16 clinical trials in Circulation (Neelakantan N et al, 2020, PMID 32029889) found that coconut oil significantly RAISES LDL cholesterol by 10.47 mg per dL (95 percent CI 3.01 to 17.94) compared with non tropical vegetable oils, without improving triglycerides, body weight, blood glucose or C reactive protein. Coconut oil is about 90 percent saturated fat, and it behaves like one. On the claimed benefits: OIL PULLING, the swishing practice the seed builds its case on, was reviewed systematically (Woolley J et al, Heliyon 2020) and the reviewers concluded the data were insufficient for conclusive findings, the study quality was mixed, the risk of bias was high, and ALL the included RCTs were judged low quality, so it cannot be determined whether coconut oil pulling has any real effect. It is not a substitute for brushing. TOPICAL SKIN, in fairness the one place a real trial exists: a randomised double blind trial of topical virgin coconut oil in 117 children with mild to moderate atopic dermatitis (Evangelista MTP et al, International Journal of Dermatology 2014, PMID 24320105) reported a larger fall in SCORAD than mineral oil. That is a single trial against an active emollient comparator, measuring the kind of barrier and water loss improvement that any occlusive moisturiser produces, and it does not establish coconut oil as a therapeutic ingredient. Nothing here supports an ingestible coconut oil claim of any kind.
No sourced therapeutic dose exists. Oil pulling protocols use about 1 tablespoon (15 mL) swished and spat out, but the trials behind that practice are low quality. Dietary Guidelines advice on limiting saturated fat applies to coconut oil.
Topical: apply virgin coconut oil to dry or eczema affected skin twice daily. Internal: use as a cooking oil or take 1 to 2 tablespoons daily for antimicrobial and energy support. Use virgin (unrefined) coconut oil for skincare.
Very safe as an oral health practice. Do not swallow after pulling, oil accumulates bacteria during swishing. Spit into bin (not sink, coconut oil solidifies in pipes). Not a replacement for brushing, flossing, or professional dental care. No systemic risks at recommended use.
Pregnancy: safe
Breastfeeding: safe
Active compounds: lauric acid, myristic acid, caprylic acid, capric acid
Remedies using Coconut Oil · Browse by body system · Check it against what you take
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.