Skip to main content
SupplementScience

Coconut Oil — Frequently Asked Questions

Reviewed by·PharmD, BCPS

This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer

Frequently Asked Questions

Is coconut oil healthy or unhealthy?

Both claims have merit — the answer depends on context. Coconut oil's MCTs provide rapid energy, produce brain-fueling ketones, and lauric acid has antimicrobial properties. It also significantly raises HDL (good) cholesterol. However, it reliably raises LDL (bad) cholesterol too, which concerns cardiologists. The American Heart Association advises limiting coconut oil due to its 82% saturated fat content. For most people, moderate amounts (1 tablespoon daily) as part of a varied diet are reasonable, but it should not be your primary cooking fat if you have cardiovascular risk factors.

Does coconut oil help with brain fog and cognitive function?

Possibly, through ketone production. MCTs in coconut oil are rapidly converted to ketones in the liver, providing an alternative fuel source when brain glucose metabolism is impaired. Reger et al. (2004) showed that acute MCT administration improved cognitive performance in patients with memory disorders. However, coconut oil's lauric acid produces ketones less efficiently than concentrated MCT oil (caprylic/capric acid). If cognitive support is your primary goal, pure MCT oil may be more effective.

What is the difference between coconut oil and MCT oil?

Coconut oil is the whole extracted oil containing all fatty acids, with roughly 50% lauric acid (C12), 7% caprylic acid (C8), and 6% capric acid (C10). MCT oil is fractionated coconut oil that removes lauric acid, concentrating the C8 and C10 medium-chain fatty acids that produce ketones most efficiently. MCT oil is liquid at room temperature, has no coconut flavor, and generates higher ketone levels per gram. Coconut oil retains lauric acid's antimicrobial benefits and polyphenol antioxidants that MCT oil lacks.

Does coconut oil raise cholesterol?

Yes — it raises both LDL and HDL cholesterol. Meta-analyses show coconut oil increases LDL by approximately 10-15% and HDL by 10-15% compared to other plant oils. Whether the net effect is harmful depends on individual cardiovascular risk. The total cholesterol-to-HDL ratio (a better predictor of heart disease than LDL alone) may remain stable or even improve. If you have high LDL or cardiovascular disease, monitor lipid panels and discuss coconut oil intake with your cardiologist.

Can I use coconut oil on my skin?

Yes, but not on your face. Coconut oil is an effective body moisturizer — it improves skin hydration, supports wound healing, and has antimicrobial properties. However, it is comedogenic (rating 4 out of 5), meaning it clogs pores and can worsen acne when applied to the face. Use it on body skin, elbows, feet, and as a hair conditioner. For facial moisturizing, choose non-comedogenic oils like hemp seed oil, jojoba oil, or squalane.

How much coconut oil should I take daily?

Start with 1 teaspoon and gradually increase to 1-2 tablespoons (14-28g) daily over 1-2 weeks. This gradual approach prevents the GI distress (nausea, diarrhea) that commonly occurs when starting MCTs at full dose. Crucially, coconut oil should replace other dietary fats, not add to them — at 120 calories per tablespoon, simply adding it increases total caloric intake. Maximum recommended supplemental dose is 3 tablespoons daily.

Is coconut oil good for weight loss?

The evidence is mixed. MCTs in coconut oil increase energy expenditure and fat oxidation compared to long-chain fats, and may promote slightly greater satiety. However, coconut oil is still calorie-dense (120 cal/tbsp) and must replace — not supplement — other dietary fats to avoid weight gain. Studies showing weight loss benefits used pure MCT oil rather than whole coconut oil. For weight management, coconut oil is a marginally better fat choice than butter or palm oil, but it is not a weight loss supplement on its own.

What does the American Heart Association say about coconut oil?

The AHA's 2017 Presidential Advisory recommended against coconut oil, citing its ability to raise LDL cholesterol. They classified it alongside butter and palm oil as a saturated fat to limit. Critics of this position note the AHA analysis focused on LDL in isolation without considering HDL increases or the LDL particle size shift (toward less atherogenic large-buoyant particles). The debate is ongoing, but if you have established cardiovascular disease or familial hypercholesterolemia, the AHA's caution is worth heeding.

Full Coconut Oil Guide

References

  1. Reger MA, Henderson ST, Hale C, Cholerton B, Baker LD, Watson GS, Hyde K, Chapman D, Craft S (2004). Effects of beta-hydroxybutyrate on cognition in memory-impaired adults. Neurobiology of Aging. DOI PubMed
  2. Cardoso DA, Moreira AS, de Oliveira GM, Raggio Luiz R, Rosa G (2015). A coconut extra virgin oil-rich diet increases HDL cholesterol and decreases waist circumference and body mass in coronary artery disease patients. Nutricion Hospitalaria. DOI PubMed
  3. St-Onge MP, Jones PJ (2002). Physiological effects of medium-chain triglycerides: potential agents in the prevention of obesity. The Journal of Nutrition. DOI PubMed
  4. Lieberman S, Enig MG, Preuss HG (2006). A review of monolaurin and lauric acid: natural virucidal and bactericidal agents. Alternative and Complementary Therapies.
  5. Nevin KG, Rajamohan T (2010). Effect of topical application of virgin coconut oil on skin components and antioxidant status during dermal wound healing in young rats. Skin Pharmacology and Physiology. DOI PubMed
  6. Sacks FM, Lichtenstein AH, Wu JHY, Appel LJ, Creager MA, Kris-Etherton PM, Miller M, Rimm EB, Rudel LL, Robinson JG, Stone NJ, Van Horn LV (2017). Dietary fats and cardiovascular disease: a presidential advisory from the American Heart Association. Circulation. DOI PubMed