Interaction databaseSupplement × SupplementReviewed May 2026

Fish Oil and Phosphatidylserine, a synergy.

Phosphatidylserine is a phospholipid that benefits from omega-3 DHA, which is preferentially incorporated into PS in brain membranes.

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.

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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 Phosphatidylserine
Pair type
Synergy
Evidence (highest tier)
Moderate
Source citations
2 sources
Stack Score effect
+2 to your Stack Score (per scored synergy row).
Scope
Supplement × Supplement
Last verified
May 30, 2026

Synergy · Moderate evidence

Synergy

What is happening. Phosphatidylserine is a phospholipid that benefits from omega-3 DHA, which is preferentially incorporated into PS in brain membranes.

Mechanism. DHA from fish oil is incorporated into the sn-2 position of phosphatidylserine in neuronal membranes, enhancing membrane fluidity and PS-dependent signaling (PKC activation, Akt/PI3K).

Recommendation. Take together. DHA-enriched phosphatidylserine may be more effective for cognitive function than soy-derived PS.

Sources (2)
  1. Kim HY et al. Phosphatidylserine in the brain. Prog Lipid Res. 2014
  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 Phosphatidylserine are in the same stack, this pair applies +2 to your Stack Score (per scored synergy row).

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

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