Kombu and Mushroom Broth
A Japanese dashi-based broth simmered with dried and fresh shiitakes, then finished with tofu, spinach, and probiotic natto; kombu supplies thyroid-supporting iodine.
From The Young Forever Cookbook

- Prep
- 15 min
- Cook
- 40 min
- Total
- 55 min
- Yield
- 4 servings
- Category
- Soup
- Cuisine
- Japanese
Nutrition (estimated)
per 1 bowl- Calories
- 180 kcal
- Protein
- 12 g
- Fat
- 7 g
- Carbs
- 22 g
- Fiber
- 5 g
- Sugar
- 6 g
- Sodium
- 940 mg
Ingredients
- 3 (5x1-inch) strips kombu
- 8 cups water
- 4 oz dried shiitake mushrooms, rinsed
- 4 scallions, whites cut into 1-inch pieces, greens sliced
- 1 tbsp finely grated fresh ginger
- 3 tbsp gluten-free tamari
- 1 tbsp mirin
- 1 tsp fish sauce (optional)
- 6 oz fresh shiitake mushrooms, sliced
- 1 carrot, peeled and sliced
- 2 cups packed baby spinach
- 1 (8-oz) package soft organic tofu, cubed
- 0.25 cup natto
Instructions
- Dashi: Combine kombu and water in a pot; bring to a boil. Remove from heat and steep 10 min. Discard kombu. Add dried shiitakes and scallion whites. Bring to a boil, reduce heat, and simmer uncovered 30 min. Stir in ginger, tamari, mirin, and fish sauce if using. Strain broth; discard mushrooms.
- Soup: Return broth to pot and bring to a simmer. Add fresh shiitakes and carrot; cook 6 min until softened. Stir in spinach and tofu; simmer about 1 min.
- Ladle into bowls and top with spoonfuls of natto and reserved scallion greens if desired.
Active Compounds
Nutrients and bioactive compounds delivered by this recipe's ingredients.
From: Kombu
From: Natto
From: Natto
From: Natto
From: Natto
From: Shiitake Mushrooms
May Support
Health conditions and aging processes this recipe's compounds may influence, based on the source research.
Protects against · via Natto
Protects against · via Natto
Protects against · via Vitamin K2
Protects against · via Probiotics
Improves · via Probiotics
Protects against · via Probiotics
Protects against · via Probiotics
Protects against · via Probiotics
Improves · via Probiotics
Protects against · via Probiotics
Improves · via Probiotics
Protects against · via Probiotics
Protects against · via Spermidine
Improves · via Spermidine
Reduces risk of · via Spermidine
Protects against · via Spermidine
Protects against · via Genistein
Protects against · via Genistein
Protects against · via Genistein
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Other recipes that share compounds or health benefits with this one.
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- Dr. Fuhrman's Anti-Inflammatory Green SmoothieHow Not to Age
- Mocha Chia PuddingThe How Not to Age Cookbook
- Okinawa-Inspired SmoothieHow Not to Age
