NSTK · 01.2026Independent supplement reference
NutriStack
Edition 1.0Updated August 1, 2026

Supplement × Supplement·Evidence index

Krill Oil and Phosphatidylserine: what the published research says

PubMed indexes 3 records that name Krill Oil and Phosphatidylserine together, either in the title or in an interaction, co-administration, or pharmacokinetic context. Each one is listed below with its study design and, where the abstract states one, the authors’ own conclusion, quoted and linked. This page reports that literature. It does not tell you whether to combine them.

Read this first

An evidence index, not guidance.

Every statement below is attributed to a named, dated, linked source.

This page lists published research relevant to Krill Oil and Phosphatidylserine. It deliberately does not state whether the combination is safe, whether it interacts, in which direction, at what dose, or how far apart to take them.

The research

3 studies naming Krill Oil and Phosphatidylserine.

Strongest relevance first: papers naming both substances in the title, then human trials and systematic reviews.

Enhanced learning and memory of normal young rats by repeated oral administration of Krill Phosphatidylserine.

Nutritional neuroscience · 2013 · PMID 22889566

Animal study

“In the PET analysis, the glucose uptake of the Krill-PS-treated groups was increased in the frontal lobe and hippocampus. These results suggest that repeated Krill-PS treatment may be useful for improving the cognitive function via regulation of neuronal growth factor activity.”

Park et al. · From the abstract

Names both Krill Oil and Phosphatidylserine in its title.

Krill-Derived Phosphatidylserine Improves TMT-Induced Memory Impairment in the Rat.

Biomolecules & therapeutics · 2012 · PMID 24116297

“Treatment with Krill-PS significantly increased the CREB positive neurons in the hippocampal CA1 area as compared to that of the MCT group. These results suggest that Krill-PS may be useful for improving the cognitive function via regulation of cholinergic marker enzyme activity and neural activity.”

Shim et al. · From the abstract

Names both Krill Oil and Phosphatidylserine in its title.

Limitations

What this evidence cannot tell you.

Search-based evidence indexes have real limits, and it is worth being explicit about them:

NutriStack

Track what you actually take.

NutriStack is a free iPhone app for organising a supplement routine: what you take, when, and what the published record says about it. Its exploratory interaction checker covers Krill Oil, Phosphatidylserine, and several hundred other substances.

The checker is a research and organisation tool, not a clinical decision aid, and its per-pair assessments are excluded from search until they pass claim-level review.

NutriStack is an informational and organizational tool, not a medical service, and not a substitute for professional advice. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement or medication.