Natto

Bean

Natto

Natto is a traditional Japanese fermented soybean dish with a unique sticky texture and savory flavor. It's packed with nutrients that support your baby's growth, including vitamin K2 for strong bones1 and probiotics that aid digestion2. While its texture might be new, many babies enjoy its mild, umami taste when introduced gradually.

PPippin Feeding TeamReviewed by feeding specialists · Updated June 2026
First age6m+
CategoryBean
Common allergenYes
Choking riskLow

When can babies eat Natto?

You can introduce natto around 6 months when starting solids, as it's soft and easy to mash. It's a great plant-based protein option for babies exploring diverse flavors.

Storage tip

Store natto in the refrigerator in its original packaging and use within the expiration date. Once opened, consume within 1-2 days for best quality.

How to serve Natto by age

Mash natto thoroughly until smooth, removing any whole beans. Mix with breast milk, formula, or a soft food like avocado to create a thin puree. Serve small spoonfuls to let your baby explore the texture.6 to 9 months

Mash natto thoroughly until smooth, removing any whole beans. Mix with breast milk, formula, or a soft food like avocado to create a thin puree. Serve small spoonfuls to let your baby explore the texture.

  • Use a fork to mash natto well
  • Mix with a familiar food to ease introduction
  • Start with a teaspoon-sized portion
  • Ensure no whole beans remain
  • Serve at room temperature
Mash natto slightly but leave some texture for chewing practice. You can mix it with soft-cooked rice, quinoa, or mashed vegetables. Offer as a finger food by spreading on toast strips or mixing into soft scrambled eggs.9 to 12 months

Mash natto slightly but leave some texture for chewing practice. You can mix it with soft-cooked rice, quinoa, or mashed vegetables. Offer as a finger food by spreading on toast strips or mixing into soft scrambled eggs.

  • Leave small soft lumps for texture
  • Combine with grains for balanced meals
  • Use as a spread on soft foods
  • Encourage self-feeding with pre-loaded spoons
  • Monitor for any texture aversion
Serve natto as a topping for rice, mixed into soups, or as part of a balanced meal. Toddlers can eat it with minimal mashing, but ensure it's soft and easy to chew. Pair with vegetables or proteins for variety.12 months +

Serve natto as a topping for rice, mixed into soups, or as part of a balanced meal. Toddlers can eat it with minimal mashing, but ensure it's soft and easy to chew. Pair with vegetables or proteins for variety.

  • Serve as a side dish with meals
  • Mix into noodle or rice dishes
  • Offer with chopsticks or forks for practice
  • Combine with colorful veggies
  • Respect your toddler's preferences if they dislike it

Safety & allergens

Choking risk: Low

Natto is naturally soft and sticky, posing minimal choking risk when served mashed or pureed. For younger babies, ensure it's well-mashed without whole beans. Always supervise your baby during meals.

Common allergen

Introduce on its own and watch closely for any signs of a reaction.

Vitamins & minerals

Natto is rich in vitamin K2, which helps direct calcium to bones for healthy development1. Its fermentation produces probiotics that support gut health and digestion2. It also provides plant-based iron for energy and growth3 and calcium for strong teeth and bones4.

Vitamins
Vitamin K2Vitamin B2Vitamin B6Vitamin B12
Minerals
IronCalciumMagnesiumPotassium

Nutritional synergy

Pair natto with vitamin C-rich foods like bell peppers or broccoli to enhance iron absorption5. Mixing it with rice or vegetables can balance its strong flavor.

Pairs well with

Common questions

How do I prepare natto to make it more appealing for my baby?

Start by mashing it well and mixing with familiar foods like rice, avocado, or sweet potato to soften its texture and flavor. You can also stir in a little breast milk or formula to make it creamier. Many babies adapt to its unique taste over time.

Can I freeze natto for later use?

Yes, you can freeze natto in small portions. Mash it and spoon into ice cube trays, then transfer to a freezer bag for up to 2 months. Thaw in the refrigerator overnight before serving.

What if my baby doesn't like the sticky texture?

It's common for babies to need multiple exposures to accept new textures. Try mixing natto with smoother foods like yogurt or applesauce, or offer it in different forms (e.g., mixed into oatmeal). If they refuse, try again in a few days without pressure.

Sources & references

  1. 1Sato et al., 2012
  2. 2Kada et al., 2013
  3. 3USDA FoodData Central, 2024
  4. 4Weaver et al., 2016
  5. 5Lynch et al., 2018