Is Soy Sauce Gluten-Free? (2024)

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Soy sauce is one of the best ways to add umami — a complex, salty, and savory flavor — to dishes. Widely used in Asian cuisine, it’s also extremely versatile and can be used in many different types of food (1).

Yet, if you have to avoid gluten, you may wonder whether soy sauce fits your dietary needs.

This article reviews whether soy sauce is gluten-free, which brands to choose, and a gluten-free soy sauce alternative.

Soy sauce is traditionally made with wheat and soy, making the name “soy sauce” slightly misleading.

The sauce is typically made by combining soy and crushed wheat and allowing the two to ferment for several days in a salty brine containing mold cultures (2).

Therefore, most soy sauces contain gluten from the wheat.

However, one variety called tamari is often naturally gluten-free. While traditional Japanese tamari contains a small amount of wheat, most tamari produced today is made using only fermented soy (2).

Additionally, some soy sauces are made with rice instead of wheat to accommodate people with gluten sensitivities.

Summary

Most soy sauce varieties contain gluten, but tamari soy sauce is generally gluten-free. Gluten-free soy sauce made with rice is also an option.

Most standard soy sauces contain gluten, while most tamari soy sauces are gluten-free.

However, you should always look for gluten-free labeling on the packaging.

The Food and Drug Administration (FDA) mandates that a food labeled gluten-free contains fewer than 20 parts per million (ppm) of gluten, a microscopic amount that is unlikely to affect even the most severely gluten-intolerant people (3).

Another way to identify gluten-free soy sauce is to check the ingredient list. If it contains wheat, rye, barley, or any ingredients made from these grains, the product is not gluten-free.

Here are several varieties of gluten-free soy sauce:

These are just a few of the gluten-free options available. The most reliable way to identify gluten-free soy sauces is by checking for a gluten-free claim on the label.

Summary

To ensure your soy sauce does not contain gluten, choose a soy sauce that’s labeled gluten-free. There are several options available.

Additionally, coconut aminos are a popular, naturally gluten-free alternative to soy sauce that can provide a punch of savory flavor.

Coconut aminos are made by aging coconut blossom sap with salt.

The result is a sauce that tastes remarkably similar to soy sauce but is naturally gluten-free. It gets its name from the fact that it contains several amino acids, which are the building blocks of protein.

Like tamari, coconut aminos are a solid gluten-free soy sauce replacement and available in specialty stores or online.

Summary

Coconut aminos are a popular, gluten-free soy sauce alternative made from coconut sap.

Most soy sauce varieties are not gluten-free.

However, tamari soy sauce is generally made without wheat and, therefore, gluten-free. The same goes for soy sauces made with rice.

Additionally, coconut aminos are a gluten-free soy sauce alternative with a similar taste.

With these gluten-free options, you don’t have to miss out on the unique umami flavor of soy sauce.

Is Soy Sauce Gluten-Free? (2024)

FAQs

Is Soy Sauce Gluten-Free? ›

Is Soy Sauce Gluten-Free? Regular soy sauce is not gluten-free. Wheat is a primary ingredient in soy sauce, which surprises many people who are new to gluten-free diet. There are several gluten-free soy sauce options available that use rice instead of wheat.

Is soy sauce ok for gluten-free? ›

Most soy sauce varieties are not gluten-free. However, tamari soy sauce is generally made without wheat and, therefore, gluten-free. The same goes for soy sauces made with rice. Additionally, coconut aminos are a gluten-free soy sauce alternative with a similar taste.

How can I eat gluten-free and soy free? ›

If you shop the perimeter of the grocery store, you will find tons of delicious foods that are naturally gluten, casein, and soy free: fruit, vegetables, nuts, beans, legumes, seeds, meat, and fish. Gluten-free grains include corn, rice, quinoa, buckwheat, millet, sorghum, teff, and amaranth.

Why is gluten found in soy sauce and ketchup? ›

Gluten is used as a stabilizer and thickener in many products, even ketchup and mustard. Same goes for pasta sauce, tomato paste, BBQ sauce and pre-made marinades (and any marinated fish or meat that you buy )!

What is soy sauce made of? ›

What Is Soy Sauce? ‌Soy sauce is a popular food used as a cooking ingredient and a condiment. ‌Soy sauce is known as shoyu and soya sauce. It's made with soybeans, wheat, salt, and a fermenting agent.

What is a good alternative to soy sauce for celiacs? ›

Tamari is a great option for people who want all the flavor of soy sauce, but can't eat gluten. Tamari is brewed in a very similar way to soy sauce, but wheat is not used. You can purchase reduced-sodium tamari, with numbers comparable to reduced-sodium soy sauce.

Can celiacs eat soy? ›

Soy is naturally gluten-free but some soy products contain other gluten-containing ingredients. Soy and soy products are fine to consume as long as they are gluten-free and providing you do not have a soy sensitivity or allergy. Soy is a bean and is naturally gluten-free.

What is surprisingly not gluten-free? ›

20 foods you think are gluten-free but aren't
  • Stock cubes. Some brands of stock cubes contain wheat – check the label or make your own stock at home to be sure it's free from gluten.
  • Buckwheat flour. Buckwheat is naturally gluten-free. ...
  • Dry roasted nuts. ...
  • Couscous. ...
  • Chocolate. ...
  • Taramasalata. ...
  • Some soft, spreadable cheeses. ...
  • Chips.
Apr 3, 2023

Does Worcestershire sauce have gluten? ›

Ingredients. The original Worcestershire sauce included barley malt vinegar, making it unsafe for someone with celiac disease or non-celiac gluten sensitivity. However, there are many different versions of Worcestershire sauce, including gluten-free versions.

Does mayonnaise have gluten? ›

Yes, in most cases mayonnaise is gluten-free. Mayonnaise or “mayo” is typically made from naturally gluten-free ingredients: eggs, oil, vinegar, lemon and sometimes mustard/mustard seed or other spices.

Why is Kikkoman so good? ›

Here is what makes Kikkoman Soy Sauce so special. Kikkoman Soy Sauce is produced from carefully selected ingredients. Its fine aroma is composed of over 300 different components, while its well-balanced mix of the five basic flavors satisfies the palate.

Can soy sauce go bad? ›

According to Eat By Date, unopened soy sauce, when stored properly in a cool, dark place, can last indefinitely, while opened soy sauce can retain quality for 2-3 years in the refrigerator. You can store it in a cool and dry area, away from the dishwasher or stove.

Is Kikkoman soy sauce gluten free? ›

Traditionally brewed with four simple ingredients - water, soybeans, rice, and salt, Kikkoman® Gluten-Free Soy Sauce is certified gluten-free by the Gluten Intolerance Group of North America (GIG).

Does ketchup have gluten? ›

Ketchup doesn't contain wheat, barley, or rye. As such, it's a naturally gluten-free product. However, some brands may use wheat-derived vinegar or produce their ketchup in a facility that manufactures other gluten-containing foods, which may contaminate it.

Can celiacs eat soy sauce powder? ›

No. Chinese soy sauce is traditionally made with wheat, which makes it unsuitable for people with coeliac disease. If wheat flour has been used as an ingredient, this must be listed on the ingredients list. Gluten free versions are available in the 'Free From' section of most major supermarkets.

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