VCVITAMINS/CHART

The Bottom Line

Yes, you can take Ginkgo Biloba and Cod Liver Oil together — no significant interaction exists at standard doses.

VERDICT

Ginkgo Biloba and Cod Liver Oil together are safe to take, with no significant interaction. The mild blood-thinning effects of both are unlikely to cause problems for healthy adults at recommended doses. Always consult your doctor if you take anticoagulants.

Safe to combine Limited evidence
01 / MECHANISM

How They Interact

Ginkgo biloba's terpene lactones (bilobalide and ginkgolides) inhibit platelet-activating factor, a potent promoter of platelet aggregation. Cod liver oil's long-chain omega-3s, EPA and DHA, also reduce platelet aggregation by decreasing thromboxane A2 synthesis and altering membrane fluidity. These two pathways are independent and do not converge or compete, so no direct interaction occurs. Both are absorbed through the intestinal wall with dietary fat, but they do not depend on the same transporter proteins. The theoretical additive effect on bleeding time is negligible at standard doses in healthy individuals, so no special separation timing is needed.

02 / BEST PRACTICES

How To Take Them

If you need both, the simplest approach is to take 120 mg of standardized ginkgo biloba extract with breakfast and 1 teaspoon (about 4–5 mL) of high-quality cod liver oil with dinner or lunch. Taking them with meals reduces stomach upset and improves fat-soluble vitamin uptake. If you miss a dose, do not double the next one; simply continue your regular schedule. To keep your vitamin A intake safe, choose a cod liver oil that provides no more than about 2,500 IU of vitamin A per serving and avoid other vitamin A-rich supplements.

03 / FORM MATTERS

Form & Quality Differences

Ginkgo biloba is usually standardized to 24% flavone glycosides and 6% terpene lactones; lower-quality extracts may not guarantee these levels. Cod liver oil naturally contains vitamins A and D, which build up in fat tissues, so choose a brand with stated vitamin A content and keep doses under 2–3 g/day to avoid hypervitaminosis A. If your cod liver oil is processed with cold-pressing or molecular distillation, the omega-3s are less oxidized, but the interaction with ginkgo remains the same.

04 / COMMON STACKS

Where This Pair Shows Up

Ginkgo biloba is frequently paired with Panax ginseng and B vitamins in memory-support supplements, while cod liver oil is often used on its own as a traditional source of vitamins A and D; they are rarely found in the same commercial formula.

Multivitamins Prenatals Performance Longevity
05

Practical Tips

06

Frequently Asked Questions

Who Should Be Careful People taking anticoagulant or antiplatelet medications (warfarin, clopidogrel, aspirin, etc.) should consult their healthcare professional before combining these, as the additive antiplatelet effect could increase bleeding risk. Pregnant women should avoid high-dose cod liver oil because of potential vitamin A toxicity, and people with a history of liver disease or bleeding disorders should be cautious. Ginkgo may theoretically lower the seizure threshold, so people with epilepsy should use it with care.
08

Sources & Further Reading

  1. NIH ODS NIH Office of Dietary Supplements — Ginkgo Biloba Fact Sheet
  2. NIH ODS NIH Office of Dietary Supplements — Cod Liver Oil Fact Sheet
  3. Examine.com Examine.com — Ginkgo Biloba interaction page
  4. Examine.com Examine.com — Cod Liver Oil interaction page

Reviewed by Caroline M. on April 11, 2025 for accuracy against the sources listed above. This page is educational and is not a substitute for professional medical advice.

WANT THE FULL PICTURE?

The matrix has 86 supplements and 7310 pairwise interactions. Click any cell to see the full breakdown.

Back To The Vitamins Chart All Cod Liver Oil Interactions All Ginkgo Biloba Interactions