NutriStack
CautionInsufficient evidence
What is happening. Fish oil can add bruising risk around injections or procedures.
Mechanism. Procedural bruising concern.
Recommendation. Disclose use before procedures and avoid self-injection.
Supplement × Supplement·a caution·Insufficient evidence
Fish Oil + Pentadeca Arginate (PDA)
Caution
Insufficient evidence
Fish oil can add bruising risk around injections or procedures.
From the database
What the row says.
Every entry follows the same shape: what is happening, the mechanism, and the recommendation.
Substances
Pair type
Caution
Evidence
Insufficient
Source citations
1
Scope
Supplement × Supplement
Last verified
June 4, 2026
Stack Score
How it moves the number.
Effect on the composite score
If both Fish Oil and Pentadeca Arginate (PDA) 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- 1Duzel A et al. BPC 157 literature and patent review. Pharmaceuticals. 2025.Needs sourceNo link
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