Supplement × Supplement·a caution·Insufficient evidence

Fish Oil + Sea Buckthorn Oil

Caution Insufficient evidence

Combining multiple fatty acid oils can increase GI side effects and may modestly increase bleeding tendency in susceptible users.

From the database

What the row says.

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

Pair type
Caution
Evidence
Insufficient
Source citations
1
Scope
Supplement × Supplement
Last verified
June 4, 2026
CautionInsufficient evidence

What is happening. Combining multiple fatty acid oils can increase GI side effects and may modestly increase bleeding tendency in susceptible users.

Mechanism. Additive lipid intake and possible antiplatelet effects at higher omega fatty acid doses.

Recommendation. Use caution with anticoagulants, antiplatelet drugs, bleeding disorders, or upcoming surgery.

Stack Score

How it moves the number.

Effect on the composite score

If both Fish Oil and Sea Buckthorn Oil 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 at /methodology/stack-score.

Sources

Sources, by evidence tier.

Every claim on this page is cited. PMIDs link straight to PubMed.

Reference material

1
  • 1Kim HK et al. Atrophic vaginitis network meta-analysis. J Menopausal Med. 2018.Needs sourceNo link

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