Tamari (Gluten-Free Soy Sauce)
Processed · Asian Sauces
Tamari: 20 ml is low FODMAP; 469 ml is moderate FODMAP.
Last updated 22 September 2026Serving sizes for tamari (gluten-free soy sauce)
Tamari: 20 ml is low FODMAP; 469 ml is moderate FODMAP.
Tested serving sizes
| Serving | Amount | Main FODMAP | Rating |
|---|---|---|---|
| 1 tablespoon | 20 ml | Mannitol 0.01 g | |
| 469 ml portion | 469 ml | Mannitol 0.2 g |
Breakdown for 1 tablespoon
Is tamari (gluten-free soy sauce) low FODMAP?
All six FODMAP groups are low at 20 ml. Mannitol is moderate at 469 ml, while the other five groups remain low. No high serving is specified; low ratings do not mean that laboratory amounts are zero.
Tamari (Gluten-Free Soy Sauce) and IBS: what to know
Use the portion appropriate to the recipe and measure the volume of sauce added to each serving. Tamari and other soy sauces have their own serving profiles.
Gut-friendly ways to eat tamari (gluten-free soy sauce)
One reference tablespoon is 20 ml. The larger portion is listed by its exact volume; rounded cup descriptions should not replace the millilitre amount. Use the label to identify tamari and check added ingredients. Gluten-free status and FODMAP serving ratings describe different properties; use the product's gluten-free declaration when that distinction matters.
Frequently asked questions
What are the FODMAP serving sizes?
Tamari: 20 ml is low FODMAP; 469 ml is moderate FODMAP.
How should I measure the portion?
One reference tablespoon is 20 ml. The larger portion is listed by its exact volume; rounded cup descriptions should not replace the millilitre amount.
Which FODMAP groups affect the ratings?
All six FODMAP groups are low at 20 ml. Mannitol is moderate at 469 ml, while the other five groups remain low. No high serving is specified; low ratings do not mean that laboratory amounts are zero.
Do these servings apply to every product?
Use the label to identify tamari and check added ingredients. Gluten-free status and FODMAP serving ratings describe different properties; use the product's gluten-free declaration when that distinction matters.
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