Can I Take These?

Can You Take Caffeine and Omega-3 / Fish Oil Together?

No documented interaction was identified between caffeine and omega-3 / fish oil in the sources reviewed.

No documented interaction identifiedEvidence: Moderate

See the full Caffeine page and Omega-3 / Fish Oil page for other reviewed interactions and reference information.

What the interaction means

Omega-3's own NIH ODS fact sheets have a dedicated, exhaustively-referenced "Interactions with Medications" section that names only warfarin and similar anticoagulants as a documented interaction; caffeine does not appear anywhere in it or in the consumer fact sheet's interactions section. This repository's existing caffeine content (drawn from MedlinePlus's caffeine page, directly fetched in prior research passes) contains no mention of omega-3 or fish oil.

No documented interaction was identified in the authoritative sources reviewed. This is not a guarantee that no interaction exists for every dose, formulation, or individual -- it means the sources checked did not document one.

Practical context

Omega-3's side of this pair was checked directly and thoroughly this pass (both NIH ODS fact sheets, full text). Caffeine's own primary source was not independently re-fetched this pass; this pair instead relies on a grep of this repository's existing, previously-verified caffeine content for any mention of omega-3/fish oil, which returned none.

What the sources say

Omega-3 Fatty Acids - Health Professional Fact Sheet — NIH Office of Dietary SupplementsOmega-3 Fatty Acids - Consumer — NIH Office of Dietary Supplements

Last reviewed 2026-08-24

Medical information disclaimer: this information is general and educational. It does not diagnose conditions, prescribe treatment, or determine whether a combination is safe for you personally. Follow your prescription label and ask a pharmacist or clinician before starting, stopping, or combining products. Full disclaimer.

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