does tuna have gluten

Many people who are following a gluten-free diet often wonder if tuna contains gluten. In this article, we will explore whether tuna, which is a type of fish commonly consumed worldwide, contains gluten or not.

What is gluten?

Before delving into whether tuna has gluten or not, it is essential to understand what gluten is. Gluten is a type of protein found in grains like wheat, barley, and rye. It provides elasticity to dough, helping it rise and maintain its shape during baking.

Tuna: Naturally Gluten-Free

Tuna, whether it is canned or fresh, is generally considered gluten-free. It does not naturally contain gluten as it is a type of fish. Therefore, for individuals with gluten sensitivities or those following a gluten-free diet, tuna is a safe choice.

Cross-Contamination Concerns

Although tuna itself is gluten-free, there might be a risk of cross-contamination when purchasing or consuming certain canned tuna products. Cross-contamination can occur when gluten-containing ingredients are processed or packaged in the same facility as tuna, leading to traces of gluten in the final product.

To minimize the risk of cross-contamination, it is crucial to read the labels and choose tuna products that are specifically labeled as gluten-free. These products are manufactured in dedicated gluten-free facilities, ensuring that there is no risk of gluten contamination.

Gluten-Free Tuna Salad Recipe

For those who enjoy tuna salad, here is a simple gluten-free recipe to try:

  • Ingredients:
    • 1 can of gluten-free tuna
    • 1/4 cup of mayonnaise (check for gluten-free label)
    • 1 tablespoon of Dijon mustard
    • 1 stalk of celery, finely chopped
    • Salt and pepper to taste
  • Instructions:
    1. Drain the tuna and transfer it to a mixing bowl.
    2. Add mayonnaise, Dijon mustard, and celery to the bowl.
    3. Mix all the ingredients until well combined.
    4. Season with salt and pepper according to taste.
    5. Serve the gluten-free tuna salad on bread or with fresh greens.

Other Gluten-Free Fish Options

If you have gluten sensitivities or follow a gluten-free diet, there are several other fish options available that are naturally gluten-free, including:

  • Salmon
  • Cod
  • Haddock
  • Mahi-Mahi
  • Sardines

These fish can be incorporated into various delicious meals while staying gluten-free.


In summary, tuna itself is gluten-free and can be safely consumed by individuals following a gluten-free diet. However, it is important to be cautious of potential cross-contamination when purchasing canned tuna products. By choosing certified gluten-free tuna and reading labels carefully, individuals can enjoy tuna without worrying about gluten presence. Additionally, there are numerous other gluten-free fish options available to provide variety and nutritional benefits.