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+ servings
Jon Simon

Miso Soup with Tofu and Spinach | Keto, Low-Carb & Diabetic-Friendly

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This traditional Japanese soup is naturally diabetic-friendly with only 6g net carbs per serving. Packed with plant-based protein from tofu and rich in probiotics from miso, it's a comforting, savory bowl that won't spike your blood sugar. Perfect for a light lunch or as a starter!
Prep Time 5 minutes
Cook Time 10 minutes
Total Time 15 minutes
Servings: 4
Course: Appetizer, dinner, lunch
Cuisine: Japanese
Calories: 85

Ingredients
  

  • 4 cups dashi or low-sodium vegetable broth Use low-sodium version to control salt intake
  • 3 tablespoons miso paste White or red miso; check label for gluten-free if needed
  • 8 ounces silken tofu Cubed into 1/2-inch pieces
  • 2 cups fresh spinach Packed; washed and stems removed
  • 2 tablespoons sliced green onions Optional garnish
  • 1 teaspoon sesame seeds Optional garnish

Equipment

Method
 

  1. Pour dashi or vegetable broth into a medium pot and heat over medium heat until it reaches a gentle simmer. Do not let it come to a rolling boil.
  2. While broth heats, cube the silken tofu into 1/2-inch pieces using a sharp knife. Handle gently as silken tofu is delicate.
  3. Once broth is simmering, carefully add the cubed tofu. Let it warm in the broth for about 2 minutes without stirring too much to prevent breaking apart.
  4. Add the fresh spinach to the pot and cook just until wilted, about 30 seconds to 1 minute. The spinach should be bright green.
  5. Remove the pot completely from heat. This step is crucial to preserve the probiotics in miso.
  6. Place the miso paste in a small bowl or ladle. Add a few spoonfuls of the hot broth to the miso and whisk until smooth and dissolved.
  7. Pour the dissolved miso mixture back into the pot and gently stir to combine evenly throughout the soup.
  8. Ladle the soup into bowls immediately. Garnish with sliced green onions and sesame seeds if desired. Serve hot and enjoy!

Nutrition

Serving: 1servingCalories: 85kcalCarbohydrates: 8gProtein: 8gFat: 4gFiber: 2gSugar: 2g

Notes

This miso soup is exceptionally diabetic-friendly with only 6g net carbs per serving and a very low glycemic load. The fermented miso provides beneficial probiotics that support gut health and may improve insulin sensitivity. Tofu offers complete plant-based protein that helps stabilize blood sugar without saturated fat. Spinach adds essential minerals like magnesium, which plays a vital role in glucose metabolism. This soup is also compatible with keto, low-carb, gluten-free (verify miso label), dairy-free, vegan, and vegetarian diets. The minimal processing and whole-food ingredients make this an excellent choice for anyone managing diabetes or simply seeking a nutritious, satisfying meal.

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