Bowl of tom yum soup with wooden spoons

Low Fodmap Tom Yum Soup

Low FODMAP Tom Yum Soup – a lighter Thai soup layered with all kinds of flavor. 

Bowls of Tom Yum soup with a wooden spoon

I love Thai food. In fact, I love it so much I took a Thai cooking class earlier this year so I could make more traditional Thai dishes at home. Today’s Low FODMAP Tom Yum Soup is based on one of the recipes we made and it is the perfect balance of sweet, salty, sour and spicy – a must in any Thai dish.

Although galangal, kaffir limes, fish sauce and lemongrass may be found in some grocery stores, I prefer to pick mine up at a local Asian grocer. There’s often more variety and it’s less expensive. 🙂

Note: Although considered low FODMAP, hot peppers and chilies may trigger symptoms in some individuals with IBS.

Two bowls of tom yum soup with wooden spoons

Bowl of tom yum soup with wooden spoons

Low Fodmap Tom Yum Soup

  • Author: Em Schwartz, MS, RDN
  • Prep Time: 5 mins
  • Cook Time: 15 mins
  • Total Time: 20 mins
  • Yield: 4
  • Category: Soup
  • Method: Stove
  • Cuisine: Thai


Low FODMAP Tom Yum Soup – a lighter Thai soup layered with all kinds of flavor.



  • 8 cups low FODMAP chicken broth
  • 1 stalk fresh lemongrass
  • 3 kaffir lime leaves
  • 1-4 smashed bird’s eye (or serrano) chilies
  • 4 slices galangal
  • 2 Tbsp. fish sauce
  • 1 lb. chicken breast, sliced
  • 2 cups chopped bok choy
  • 1 lime, juice of
  • ½ tsp. sugar, optional

Optional Garnishes

  • Cilantro, chopped
  • Chives, chopped
  • Red pepper flakes
  • Cooked rice


  1. Heat broth, lemongrass, kaffir limes, chilies, galangal, and fish sauce in a soup pot over medium-high heat. Once hot, add chicken and bok choy. Bring to a boil, reduce heat and cook 8-10 minutes, until chicken is done.
  2. Stir in lime juice and sugar. Remove lemongrass, kaffir limes, chilies, and galangal.
  3. Top with optional garnishes and serve warm with cooked rice.


Chili Peppers:  Although low in FODMAPs, chili peppers naturally contain a compound called capsaicin which gives them their spiciness. Capsaicin may trigger heartburn or abdominal pain in some individuals.

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I'm a foodie and dietitian living with IBS who loves creating easy and delicious low FODMAP recipes for you (and me)! I've been trained on the use of the low FODMAP diet for IBS by Monash University and create my recipes based on their (green) low FODMAP serving sizes.

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