Interaction databaseSupplement × SupplementReviewed May 2026

Fish Oil and Turmeric/Curcumin, a caution.

Both have blood-thinning properties. High doses of both together may increase bleeding risk.

One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
Same shape as the other 1,729 pairs in the public database.

Sourcing standards·Evidence tiers

From the interaction database

What the row says.

Every entry follows the same shape: what is happening, the mechanism, the recommendation, and the primary literature.

At a glance

Substances
Fish Oil and Turmeric/Curcumin
Pair type
Caution, Synergy
Evidence (highest tier)
Moderate
Source citations
4 sources
Stack Score effect
−5 to your Stack Score (per scored caution row).
Scope
Supplement × Supplement
Last verified
May 30, 2026

Caution · Emerging evidence

Caution

What is happening. Both have blood-thinning properties. High doses of both together may increase bleeding risk.

Mechanism. Fish oil reduces thromboxane A2 production and platelet aggregation. Curcumin inhibits COX-2 and platelet-activating factor. Additive anticoagulant effects at high doses.

Recommendation. At standard doses, this combination is generally safe and synergistic. Monitor for easy bruising at high doses. Discontinue before surgery.

Sources (2)
  1. Keihanian F et al. Curcumin, hemostasis, thrombosis, and coagulation. J Cell Physiol. 2018;233(6):4497-4511. PMID 29052850
  2. Javaid M et al. Bleeding Risk in Patients Receiving Omega-3 Polyunsaturated Fatty Acids: A Systematic Review and Meta-Analysis of Randomized Clinical Trials. J Am Heart Assoc. 2024;13(10):e032390. PMID 38742535

Synergy · Moderate evidence

Synergy

What is happening. Curcumin is fat-soluble and its absorption increases significantly when taken with dietary fat like fish oil. Both share anti-inflammatory pathways.

Mechanism. Fat increases micellar solubilization of curcumin. Both modulate NF-κB and COX-2 pathways through complementary mechanisms, providing additive anti-inflammatory action.

Recommendation. Take curcumin with fish oil or a fat-containing meal for maximum absorption and synergistic anti-inflammatory effects.

Sources (2)
  1. Anand P et al. Bioavailability of curcumin. Mol Pharm. 2007
  2. Uchida Y, Tsuji K, Ochi E. Effects of Omega-3 fatty acids supplementation and resistance training on skeletal muscle.. Clinical Nutrition ESPEN. 2024. PMID 38777432

Stack Score

How this pair moves the number.

Effect on the composite score

If both Fish Oil and Turmeric/Curcumin are in the same stack, this pair applies −5 to your Stack Score (per scored caution row).

The full algorithm, the clamping rules, and four worked stacks are documented at /methodology/stack-score.

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