Is Subway Tuna Halal?
Edited By Staff Writer, Halal Incorp
The Halal position of Subway tuna is a complex issue, revolves around not just the fish itself but also on its sourcing, processing & preparation inside the shops.
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Real Tuna or Not?
Subway strongly states its tuna is “100 % real, wild-caught,” backed by American regulatory testing & certifications, including Dolphin Safe & Kosher labels.
They also refer a lawsuit dismissed on July 27, 2023, that challenged these claims.
Conversely, earlier legal actions (2021) alleged samples contained no tuna DNA and even traces of chicken, pork & cattle.
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But, investigations by labs like Applied Food Technologies did confirm tuna DNA in all samples tested.

Preparation & Cross-Contamination
Even if Subway’s tuna is Halal-in-origin, in-restaurant handling raises concerns about cross-contamination. A Redditor cautioned:
“The tuna itself is halal HOWEVER there is major cross contamination with the pork and other meats when subway employees make sandwiches.”
This issue is exacerbated by shared utensils, gloves, and preparation surfaces. Although there are some Subways in the UK which serve Halal meat.
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Halal Verdict: A Nuanced Answer
- The tuna’s origin: Halal if sourced as Subway claims.
- Preparation environment: There is risk of some contamination from non-Halal meats inside stores, unless fully Halal certified.
For Muslims aligning with Halal principles, contamination in sandwich assembly may render Subway tuna not viable for Muslims. Scholar commentary suggests avoiding where doubt persists.
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Final Thoughts
While Subway tuna may meet Halal sourcing standards, the in-store process may not. The fish itself appears Halal, but shared preparation spaces and utensils pose a significant risk. Without a certified Halal protocol in your local outlet, caution is advisable.
References
- Subway Tuna Facts & lawsuit dismissal, July 27, 2023
- 2021 scientific tests: mixed results – tuna DNA vs. allegations of pork/chicken DNA
- Reddit discussion on cross-contamination
- MuslimMatters.org scholar opinions
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