Use it like any other fat and in moderation; it is not a special health food.
Coconut oil, despite its 'healthy aura', is very rich in saturated fat and raises LDL cholesterol (and HDL as well) more than unsaturated vegetable oils. There is no evidence that it protects the heart; it is better to use it in moderation compared with oils such as olive oil.
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Coconut oil is one of the foods whose nutritional reputation has gone through several conceptual swings in recent decades: for years it was considered clearly unfavorable because of its very high saturated fat content (more than 90 percent, a higher proportion than beef tallow or lard); in the last decade it has been intensely promoted as a "superfood" because of its content of medium-chain fatty acids (MCTs), supposedly metabolized in a unique way; recent rigorous clinical data have significantly qualified both extreme narratives, and the current evidence-based position is more prudent and conservative.
The promotion of coconut oil as a "superfood" is frequently based on the demonstrated effect of pure MCTs (C8/C10 supplements, caprylic and capric acids) on ketogenesis and body composition; the problem is that coconut oil has a composition dominated by lauric acid (C12, about 50 percent of the total), a fatty acid that is technically medium-chain but metabolically behaves more like a long-chain fatty acid (it is incorporated into chylomicrons and does not produce the rapid effects on ketogenesis of pure C8/C10); in other words, the effects attributed to MCTs are not replicated with whole coconut oil, an important pharmacological distinction that commercial marketing frequently omits.
Multiple recent clinical trials and meta-analyses have confirmed that coconut oil significantly increases plasma LDL cholesterol, by magnitudes similar to other saturated fats (butter, lard, tallow), and to a greater extent than unsaturated vegetable oils (olive, sunflower, canola oil); this effect is the basis of the consensus of international cardiology associations (American Heart Association, European Society of Cardiology), which do not recommend coconut oil as a substitute for unsaturated vegetable oils for cardiovascular prevention.
A frequent response from defenders of coconut oil is that it also raises HDL cholesterol, not just LDL; although this is partly true, current evidence suggests that the net effect on cardiovascular risk is unfavorable (the HDL increases induced by saturated fats do not consistently translate into reductions in cardiovascular events), and the predominant clinical position is to prioritize LDL reduction as a more solid therapeutic target than raising HDL.
Despite the cardiovascular considerations, coconut oil has some useful culinary characteristics: a high smoke point (suitable for cooking at moderate temperatures), a characteristic flavor that it contributes to certain preparations (Asian cuisines, specific baking), and a reasonable oxidative stability profile; as an oil for occasional use in specific preparations where it contributes a characteristic flavor, it poses no problem; as the main substitute for olive oil or other unsaturated vegetable oils for everyday use, it is not recommended.
Coconut oil has an interesting cosmetic profile for topical use: skin hydration, emollient properties, and possible modest antimicrobial activity for some mild dermatological indications; these topical uses do not pose the same problems as abundant oral consumption and may have a place in natural cosmetic strategies.
For culinary use, consider coconut oil a fat with an unfavorable cardiovascular profile and use it in moderation (not as the main oil); prioritize extra virgin olive oil as the main oil for everyday use because of its well-documented favorable cardiovascular profile; reserve coconut oil for specific preparations where it contributes a characteristic flavor (Thai curry, specific baking) or as an occasional ingredient; do not fall for the commercial narratives that promote coconut oil as a "superfood" or a healthy substitute for unsaturated oils.
The health considerations are: people with significant dyslipidemia or high cardiovascular risk should minimize their consumption of coconut oil along with other saturated fats; people with a coconut allergy (more common in some countries) should avoid it absolutely; in children and healthy adults on balanced Mediterranean diets, occasional consumption of small amounts poses no significant problems; pure "MCT" products (standardized C8/C10 oils) are different from whole coconut oil and may have specific applications in ketogenic diets or as a modest ergogenic aid, an important distinction when choosing products; the reasonable clinical position is: coconut oil is neither a cardiovascular "superfood" nor a nutritional poison, but a saturated fat with an unfavorable cardiovascular profile that can have a modest culinary place without becoming the main oil for everyday use.
Information, not medical advice. Scientific evidence reflects the quality of the studies.