Is Soy Sauce Gluten-Free?
Quick Answer
No, standard soy sauce in the US contains wheat. Look for San-J Tamari or Kikkoman Gluten-Free Soy Sauce.
No, standard soy sauce in the US contains wheat. Look for San-J Tamari or Kikkoman Gluten-Free Soy Sauce.
Key Takeaways
- •Safety Status: Contains gluten. Avoid completely.
- •Hidden Risks: Cross-contamination in shared equipment, thickeners, or hidden barley/wheat additives.
- •Recommended Brands: San-J Tamari (GF), Kikkoman GF Soy Sauce, Coconut Secret Coconut Aminos and more.
- •Safe Alternatives: Tamari (certified GF), Coconut aminos, Bragg Liquid Aminos.
The Bottom Line: Soy Sauce contains gluten and is not safe for people with celiac disease or gluten sensitivity. Look for certified gluten-free alternatives instead. Source: Check Gluten, reviewed by Sarah Mitchell, B.S. Nutrition Science. Last updated July 2026.
🌍 Regional Safety Checker
No, standard soy sauce in the US contains wheat. Look for San-J Tamari or Kikkoman Gluten-Free Soy Sauce.
In the United States, traditional soy sauces like standard Kikkoman and La Choy are brewed with wheat as a primary ingredient. Celiacs must look for bottles specifically labeled "Gluten-Free" or buy imported tamari.
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The Full Answer
Regular soy sauce is made from a fermented paste of soybeans, wheat, salt, and water. Wheat is a primary ingredient — typically 40-60% of the grain content — making it unsafe for people with celiac disease.
This is one of the most common sources of hidden gluten exposure, especially at Asian restaurants, in marinades, teriyaki sauce, and many processed foods. Even "low sodium" soy sauce still contains wheat.
The safe alternative is tamari, which is a Japanese soy sauce traditionally made without wheat (though some brands add it, so always check). San-J Tamari and Kikkoman GF Soy Sauce are reliably gluten-free. Coconut aminos are another excellent wheat-free alternative with a slightly sweeter, milder flavor.
Hidden Gluten Risks in Soy Sauce
- ⚠Present in most Asian restaurant cooking
- ⚠Hidden in teriyaki, ponzu, hoisin sauce
- ⚠Used in marinades, dressings, and gravies
- ⚠May be listed as "soy protein" or "hydrolyzed soy" on labels
Safe Brands
- ✅ San-J Tamari (GF)
- ✅ Kikkoman GF Soy Sauce
- ✅ Coconut Secret Coconut Aminos
- ✅ Bragg Liquid Aminos
Avoid These
- 🚫 Kikkoman Regular
- 🚫 La Choy
- 🚫 Most restaurant soy sauce
- 🚫 Any soy sauce without GF label
🛒 Shop Safe Brands
Brands we list as safe for this food, matched to their Amazon listing. Always check the label on the pack you actually buy — recipes and factory lines change.
San-J Tamari (GF)
San-J Gluten Free Tamari Soy Sauce Specially Brewed 100% Soy Bulk 64oz
$31.99
Price as of Aug 23
Kikkoman GF Soy Sauce
Kikkoman Soy Sauce Gluten-Free 8.5 oz.
$9.00
Price as of Aug 23
Coconut Secret Coconut Aminos
Bragg Organic Coconut Aminos – 16oz, Soy-Free Alternative, Gluten-F...
$13.99
Price as of Aug 23
Bragg Liquid Aminos
Liquid Aminos 16 oz. 16 Ounces
$5.47
Price as of Aug 23
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Safe Swaps for Soy Sauce
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Frequently Asked Questions
Found a gluten-free soy sauce? Check it before you buy
"Gluten-free" on the front does not always survive the ingredient list. Scan the label and see every hidden source before it reaches your trolley.
Related: Is This Gluten-Free?
Celiac Safety Glossary
- Celiac disease
- Celiac disease is a serious autoimmune disorder in which ingesting gluten — a protein found in wheat, barley, and rye — triggers an immune response that damages the small intestine's villi, affecting approximately 1 in 100 people worldwide according to the Celiac Disease Foundation.
- Gluten
- Gluten is a family of storage proteins (prolamins and glutelins) found naturally in cereal grains like wheat (including varieties like spelt, kamut, and farro), barley, and rye, which acts as a binder to give food elasticity and shape.
Sources & References
- FDA — Gluten-Free Labeling of Foods (21 CFR 101.91) — the U.S. under-20-ppm standard for "gluten-free" claims
- Celiac Disease Foundation — Gluten-Free Foods — which foods and ingredients are safe for celiacs
- Coeliac UK — Gluten-Free Diet & Lifestyle — UK/EU labeling rules and safe-food guidance
Brand gluten-free statuses reflect manufacturer information as of July 2026 and can change — always confirm on the current label.
About the Author
Sarah Mitchell
Lead Content Writer & Nutritionist, B.S. Nutrition Science
Sarah was diagnosed with celiac disease in 2018 and writes evidence-based guides combining clinical nutrition knowledge with 6+ years of personal gluten-free living experience.
Medical Disclaimer: This article is for informational purposes only and is not a substitute for professional medical advice. Always consult your physician or a registered dietitian before making dietary changes related to celiac disease. Read full disclaimer.