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Best Fish Sauce Substitute in Smoothie

5 tested options with exact ratios, science-backed explanations, and tips for success.

Quick Answer

The best substitute for Fish Sauce in Smoothie is Soy Sauce (Low Sodium) because it provides a similar umami depth and saltiness without overpowering the delicate smoothie flavors.

Top 5 Fish Sauce Substitutes for Smoothie

Substitute Ratio
Soy Sauce (Low Sodium) (Best) 1/2 teaspoon per 1 tablespoon Fish Sauce
Tamari 1/2 teaspoon per 1 tablespoon Fish Sauce
Coconut Aminos 1 teaspoon per 1 tablespoon Fish Sauce
Seaweed Extract (Liquid) 1/4 teaspoon per 1 tablespoon Fish Sauce
Mushroom Broth Concentrate 1 teaspoon diluted in 1 tablespoon water per 1 tablespoon Fish Sauce

Detailed Guide: Each Fish Sauce Substitute in Smoothie

Soy Sauce (Low Sodium) (Best Option)

1/2 teaspoon per 1 tablespoon Fish Sauce
Vegan Gluten-Free Dairy-Free Fat-Free Nut-Free
Quick tip: Adds umami and saltiness with minimal impact on texture or sweetness.

Soy sauce contains glutamates that provide umami similar to fish sauce, making it a suitable flavor enhancer in smoothies. Its liquid form ensures it blends smoothly without altering texture.

When using soy sauce, opt for low sodium to avoid excessive saltiness that can overpower the smoothie’s natural sweetness. Start with half the amount and adjust to taste.

Compared to fish sauce, soy sauce is less pungent and fishy, resulting in a milder umami note that complements rather than dominates the smoothie.

Tamari

1/2 teaspoon per 1 tablespoon Fish Sauce
Vegan Gluten-Free Dairy-Free Fat-Free Nut-Free
Quick tip: Gluten-free alternative to soy sauce with a similar umami profile, blending well without textural changes.

Tamari is a Japanese soy sauce variant with a richer, less salty flavor and no wheat, making it ideal for gluten-sensitive individuals. It provides umami through amino acids, enhancing the smoothie’s flavor complexity.

Use the same reduced ratio as soy sauce to prevent overpowering sweetness or texture. Mix thoroughly to ensure even distribution.

Tamari’s smoother, less sharp taste compared to fish sauce results in a subtler umami presence, preserving the smoothie’s balance.

Coconut Aminos

1 teaspoon per 1 tablespoon Fish Sauce
Vegan Gluten-Free Dairy-Free Fat-Free Nut-Free
Quick tip: Sweeter and less salty, it adds umami with a mild sweetness that can complement fruit-based smoothies.

Coconut aminos are derived from fermented coconut sap and contain amino acids that provide umami flavor similar to fish sauce but with a sweeter, less salty profile. This can enhance the smoothie’s flavor without introducing fishiness.

Because it is sweeter, use a slightly higher amount to balance the reduced saltiness, but be cautious to avoid making the smoothie too sweet. Adjust other sweeteners accordingly.

The final smoothie will have a milder umami and a subtle sweetness, which can be pleasant in fruit-forward recipes but may alter savory smoothie profiles.

Seaweed Extract (Liquid)

1/4 teaspoon per 1 tablespoon Fish Sauce
Vegan Gluten-Free Dairy-Free Fat-Free Nut-Free
Quick tip: Provides marine umami notes without fishiness, but can be slightly briny and should be used sparingly.

Seaweed extract contains natural glutamates and iodine, imparting a subtle oceanic umami flavor similar to fish sauce. Its liquid form allows it to blend well into smoothies without affecting texture.

Because of its strong briny flavor, start with a small amount and increase cautiously. It pairs best with green or vegetable-based smoothies rather than sweet fruit blends.

This substitute offers a closer marine flavor profile but is less salty and pungent, resulting in a smoother, less assertive umami presence.

Mushroom Broth Concentrate

1 teaspoon diluted in 1 tablespoon water per 1 tablespoon Fish Sauce
Vegan Gluten-Free Dairy-Free Fat-Free Nut-Free
Quick tip: Adds earthy umami but lacks the marine notes; must be diluted to avoid texture issues.

Mushroom broth concentrate is rich in glutamates and provides a deep umami flavor that can partially mimic fish sauce’s savory qualities. When diluted, it blends smoothly into smoothies without graininess.

Dilution is critical to maintain smooth texture and prevent overpowering earthiness. It works best in vegetable or savory smoothies rather than sweet fruit blends.

While it lacks the characteristic oceanic flavor of fish sauce, it enhances overall savoriness and depth, making it a reasonable but less precise substitute.

Vegan Fish Sauce Substitutes for Smoothie

Full Vegan guide →
Soy Sauce (Low Sodium)
Ratio: 1/2 teaspoon per 1 tablespoon Fish Sauce

Adds umami and saltiness with minimal impact on texture or sweetness.

Tamari
Ratio: 1/2 teaspoon per 1 tablespoon Fish Sauce

Gluten-free alternative to soy sauce with a similar umami profile, blending well without textural changes.

Coconut Aminos
Ratio: 1 teaspoon per 1 tablespoon Fish Sauce

Sweeter and less salty, it adds umami with a mild sweetness that can complement fruit-based smoothies.

Seaweed Extract (Liquid)
Ratio: 1/4 teaspoon per 1 tablespoon Fish Sauce

Provides marine umami notes without fishiness, but can be slightly briny and should be used sparingly.

Mushroom Broth Concentrate
Ratio: 1 teaspoon diluted in 1 tablespoon water per 1 tablespoon Fish Sauce

Adds earthy umami but lacks the marine notes; must be diluted to avoid texture issues.

Gluten-Free Fish Sauce Substitutes for Smoothie

Full Gluten-Free guide →
Soy Sauce (Low Sodium)
Ratio: 1/2 teaspoon per 1 tablespoon Fish Sauce

Adds umami and saltiness with minimal impact on texture or sweetness.

Tamari
Ratio: 1/2 teaspoon per 1 tablespoon Fish Sauce

Gluten-free alternative to soy sauce with a similar umami profile, blending well without textural changes.

Coconut Aminos
Ratio: 1 teaspoon per 1 tablespoon Fish Sauce

Sweeter and less salty, it adds umami with a mild sweetness that can complement fruit-based smoothies.

Seaweed Extract (Liquid)
Ratio: 1/4 teaspoon per 1 tablespoon Fish Sauce

Provides marine umami notes without fishiness, but can be slightly briny and should be used sparingly.

Mushroom Broth Concentrate
Ratio: 1 teaspoon diluted in 1 tablespoon water per 1 tablespoon Fish Sauce

Adds earthy umami but lacks the marine notes; must be diluted to avoid texture issues.

Dairy-Free Fish Sauce Substitutes for Smoothie

Full Dairy-Free guide →
Soy Sauce (Low Sodium)
Ratio: 1/2 teaspoon per 1 tablespoon Fish Sauce

Adds umami and saltiness with minimal impact on texture or sweetness.

Tamari
Ratio: 1/2 teaspoon per 1 tablespoon Fish Sauce

Gluten-free alternative to soy sauce with a similar umami profile, blending well without textural changes.

Coconut Aminos
Ratio: 1 teaspoon per 1 tablespoon Fish Sauce

Sweeter and less salty, it adds umami with a mild sweetness that can complement fruit-based smoothies.

Seaweed Extract (Liquid)
Ratio: 1/4 teaspoon per 1 tablespoon Fish Sauce

Provides marine umami notes without fishiness, but can be slightly briny and should be used sparingly.

Mushroom Broth Concentrate
Ratio: 1 teaspoon diluted in 1 tablespoon water per 1 tablespoon Fish Sauce

Adds earthy umami but lacks the marine notes; must be diluted to avoid texture issues.

❌ What NOT to Use as a Fish Sauce Substitute in Smoothie

Worcestershire Sauce

Worcestershire sauce has a strong vinegar and spice profile that can clash with the sweet and creamy nature of smoothies, resulting in an unpleasant aftertaste.

Anchovy Paste

Anchovy paste is too concentrated and pungent for smoothies, leading to an overpowering fishy flavor that disrupts the smooth texture and mild taste.

Miso Paste

Miso paste is thick and grainy, which negatively affects the smooth texture of smoothies and introduces a strong fermented flavor that may not blend well with typical smoothie ingredients.

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