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Is Eel Sauce FODMAP Friendly? A Complete Guide

4 min read

According to Monash University, a moderate amount of soy sauce is considered low FODMAP, but the devil is in the details when it comes to eel sauce. The key to determining if eel sauce is suitable for a low FODMAP diet lies in analyzing the specific ingredients used, particularly the type of soy sauce and sweeteners.

Quick Summary

Commercial eel sauces often contain high-FODMAP ingredients like high-fructose corn syrup, making them unsuitable for the diet. This guide details standard eel sauce components, identifies which are problematic, and provides recipes for making a safe, homemade version using low-FODMAP alternatives.

Key Points

  • Check Ingredients: Always check the label of store-bought eel sauce, as many contain high-fructose corn syrup (HFCS), a high FODMAP sweetener.

  • Tamari is Key: Use gluten-free tamari instead of traditional soy sauce to avoid potential fructans from wheat, making the sauce safer for sensitive individuals.

  • Homemade is Safest: The most reliable method is to make eel sauce at home using known low-FODMAP ingredients, giving you full control.

  • Safe Sweetener: Stick to pure granulated white sugar (sucrose), which is low FODMAP due to its balanced glucose-fructose ratio, and avoid honey and high-fructose alternatives.

  • Mirin is Approved: Mirin, a standard ingredient, has been certified as low FODMAP in tested serving sizes, making it a safe component for your homemade sauce.

  • Test Your Tolerance: Even with safe ingredients, it is important to test your personal tolerance during the reintroduction phase, as some people may react differently to various food components.

In This Article

Understanding Eel Sauce and its Components

Eel sauce, also known as unagi no tare, is a thick, sweet, and savory glaze commonly drizzled over grilled eel (unagi) and sushi. Despite its name, it does not typically contain eel and is often vegetarian. However, its FODMAP status is a bit more complicated, as it depends on the preparation method and ingredients. The traditional recipe includes soy sauce, mirin, sugar, and sometimes sake, while commercial versions may contain other additives.

The FODMAP Status of Common Eel Sauce Ingredients

To determine if eel sauce is FODMAP friendly, it's essential to examine the FODMAP content of its core ingredients individually.

Soy Sauce and Tamari

Traditional soy sauce is made with soybeans and wheat, with the wheat containing fructans, a high-FODMAP carbohydrate. However, Monash University testing has indicated that small portions are often tolerated during the elimination phase of the low-FODMAP diet. For complete safety, a gluten-free tamari, which is made with little to no wheat, is the best substitute.

Mirin

Mirin is a sweet Japanese rice wine used for cooking. Good news for low-FODMAP dieters: FODMAP Friendly has tested mirin and certified it as low FODMAP at a 20ml serving size. Its lower alcohol and higher sugar content, compared to sake, contribute to its safe status in moderation.

Sugar and Sweeteners

Plain white table sugar (sucrose) is considered low FODMAP because it consists of a 1:1 ratio of glucose and fructose. When glucose and fructose are balanced, glucose aids in the absorption of fructose, preventing digestive issues. However, many commercial eel sauces use high-fructose corn syrup (HFCS), which is very high in excess fructose and must be avoided.

Sake

Sake, or Japanese rice wine, is also considered low FODMAP, similar to mirin. However, some sakes with added sweeteners could potentially have a higher FODMAP content. For cooking purposes, the alcohol content mostly cooks off, leaving a clean, low-FODMAP flavor. Some individuals might find certain brands or longer fermented versions to have higher FODMAP content, making it important to test your personal tolerance.

Homemade vs. Store-Bought Eel Sauce

If you are following a low FODMAP diet, homemade eel sauce is the safest and most reliable option. Store-bought sauces are a gamble due to the high probability of hidden high-FODMAP ingredients. By making your own, you have complete control over every ingredient, ensuring it is 100% safe for your gut health.

Homemade Low-FODMAP Eel Sauce Recipe

This simple recipe uses safe, approved ingredients to create a delicious and authentic-tasting eel sauce perfect for your favorite Japanese dishes.

Ingredients:

  • 1/2 cup gluten-free tamari
  • 1/4 cup mirin
  • 1/4 cup granulated white sugar

Instructions:

  1. Combine the tamari, mirin, and sugar in a small saucepan.
  2. Bring the mixture to a simmer over medium-low heat, stirring constantly until the sugar dissolves completely.
  3. Continue to simmer gently for about 10-15 minutes, or until the sauce has reduced and thickened to a glaze-like consistency.
  4. Remove from heat and let it cool. The sauce will thicken further as it cools.
  5. Store in an airtight container in the refrigerator for up to several weeks.

Comparison: Homemade vs. Commercial Eel Sauce

Feature Homemade Low-FODMAP Eel Sauce Commercial Eel Sauce
FODMAP Content Can be made 100% low-FODMAP. Often contains high-FODMAP ingredients like HFCS and garlic.
Ingredients All ingredients are known and controllable. May contain high-fructose corn syrup, additives, and unknown flavorings.
Control Full control over sweetness and thickness. Pre-determined flavor and consistency, often overly sweet.
Cost More cost-effective in the long run. Can be cheap per bottle, but not cost-effective if multiple bottles are needed.
Safety Eliminates risk of triggering IBS symptoms from hidden ingredients. High risk for sensitive individuals unless a certified low-FODMAP brand is found.
Flavor Customizable to your preference. Standardized flavor, potentially less complex.

FODMAP-Friendly Uses for Your Homemade Eel Sauce

Once you have your homemade sauce, you can use it in many ways to add a sweet and savory kick to low-FODMAP meals:

  • Sushi and Rolls: Drizzle over homemade sushi rolls made with low-FODMAP ingredients like cucumber, cooked salmon, or shrimp. Tip: Always check the ingredients in imitation crab meat, as some contain wheat.
  • Grilled Proteins: Brush onto grilled chicken, fish, or firm tofu during the last few minutes of cooking for a delicious glaze.
  • Rice Bowls: Add to a warm bowl of rice with approved vegetables and protein.
  • Marinade: Use as a flavorful marinade for meat, poultry, or tofu.

Conclusion: Navigating Eel Sauce on a Low-FODMAP Diet

While store-bought eel sauce is generally not a safe bet on a low FODMAP diet due to potential high-fructose corn syrup and gluten content, the classic ingredients of a simple homemade recipe are mostly low FODMAP. The key lies in controlling the ingredients yourself. By choosing a low-FODMAP soy sauce alternative like tamari and avoiding high-fructose sweeteners, you can easily create a delicious, gut-friendly version of this popular Japanese condiment. This way, you can enjoy the rich, savory-sweet flavor of eel sauce without compromising your digestive comfort.

Important Note

It's crucial to remember that individual tolerances vary. Always re-introduce ingredients with caution during the reintroduction phase of the diet to determine your personal thresholds. If you are unsure, consult a registered dietitian specializing in the low-FODMAP diet.

Frequently Asked Questions

Despite its name, traditional and commercial eel sauce does not contain eel. It is named for its use as a glaze for grilled eel dishes (unagi), making it typically vegetarian and often vegan.

Many commercial brands use high-fructose corn syrup (HFCS) as a sweetener, which is high in excess fructose and must be avoided during the low-FODMAP elimination phase. Traditional soy sauce may also contain wheat, a source of fructans.

A certified gluten-free tamari is the best substitute for traditional soy sauce. It offers a similar savory flavor profile but is made with little or no wheat, making it a safe choice for a low-FODMAP diet.

No, according to testing by FODMAP Friendly, mirin is considered a low-FODMAP ingredient in tested serving sizes (20ml) and is safe to use in a homemade eel sauce recipe.

No, honey is high in excess fructose and is therefore not considered low-FODMAP. It is best to use granulated white sugar (sucrose) or a small amount of maple syrup, as these are low-FODMAP sweeteners.

Yes, a homemade low-FODMAP version, using tamari, mirin, and sugar, can replicate the sweet and savory umami flavor of a traditional eel sauce very effectively. It may even taste better as you can control the quality of the ingredients.

The key to thickening eel sauce naturally is reduction. By simmering the ingredients over low heat for 10-15 minutes, the mixture reduces and the sugar caramelizes, creating a thick, syrupy glaze without the need for additional thickeners.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.