Natto for Babies
Complete guide on how to prepare and serve natto to your baby, by age.
Last reviewed: April 2026
Safety Information
How to Serve Natto to a 6–9 Months Old
How to Cut
For babies 6 to 9 months old, natto's texture must be modified to be safe. The whole beans present a choking risk. To prepare, thoroughly mash the fermented soybeans with a fork until they form a textured paste, ensuring no whole beans remain. You can also blend it into a smoother purée. Due to its very sticky and stringy consistency, it's best to mix a small amount into other foods like congee, plain yogurt, or a vegetable purée to make it easier for your baby to swallow. Always supervise your baby closely during feeding.
Serving Instructions
Introduce natto with a very small serving size, about 1-2 teaspoons (5-10 ml; 0.17-0.33 oz), due to its strong flavor and status as a common allergen (soy). Mix the mashed or puréed natto into a familiar food like avocado mash, sweet potato purée, or infant cereal. This helps with acceptance and manages the sticky texture. To boost iron absorption from the beans, pair it with a food high in vitamin C, such as a purée of bell peppers or broccoli. Use a pre-loaded spoon to encourage self-feeding and make it easier for your baby to handle.
How to Serve Natto to a 9–18 Months Old
How to Cut
As your baby develops their pincer grasp and chewing skills between 9 and 18 months, you can offer natto with more texture. Instead of a full purée, lightly mash the beans with the back of a fork, leaving some soft, lumpy texture. This encourages oral motor development. Mixing the mashed natto with sticky rice or oatmeal can help your baby pick it up with their hands or a spoon. Continue to ensure there are no whole, round beans. Always supervise mealtime and ensure your child is seated upright to prevent choking.
Serving Instructions
You can increase the serving size to 1-2 tablespoons (15-30 ml; 0.5-1 oz) as your baby gets used to the flavor. Serve the lightly mashed natto mixed into soft-cooked grains like quinoa or barley, or stir it into cottage cheese. This provides texture for developing chewing skills while the other food helps bind the sticky beans. For a nutritionally complete meal, add a source of healthy fat like a drizzle of sesame oil or flaxseed oil, which supports brain development. Continue to encourage self-feeding with fingers or a spoon to build motor skills.
How to Serve Natto to a 18+ Months Old
How to Cut
For toddlers over 18 months who are confident eaters and chewers, natto can often be served as is. The fermented soybeans are soft, but their sticky, stringy nature can still be challenging. To aid handling, you can serve it mixed into a small bowl of rice or noodles, which helps contain the stickiness. If your child is still learning to manage complex textures, you can continue to lightly mash the beans. Always ensure your toddler is seated upright and supervised during meals to minimize choking risk. Avoid distractions during mealtimes to encourage mindful eating.
Serving Instructions
For toddlers, offer a serving of about 2-4 tablespoons (30-60 ml; 1-2 oz) of natto. At this age, you can serve it traditionally over a bowl of rice or mixed into scrambled eggs or pasta. This is a great way to introduce them to family-style meals. Natto is an excellent source of plant-based protein for growth and Vitamin K2, which is crucial for bone development. To enhance its iron content, pair the meal with a vitamin C-rich food like strawberries or kiwi for dessert. Encourage self-feeding with a spoon to promote independence.
Important Safety Disclaimer
Every child develops chewing and swallowing skills at their own pace. The preparation methods shown are general guidelines; you must always evaluate your individual child's ability before serving. By offering this food, you agree to the following:
- Choking & Preparation: All foods can pose a choking hazard. You are strictly responsible for modifying food sizes and textures to match your child's skills. Always physically inspect this food for hidden hazards (e.g., bones, pits, seeds, splinters, or tough skins) before serving.
- Food Handling: Ensure all ingredients are properly washed, stored, and cooked to safe internal temperatures to prevent foodborne illness. Never serve raw or undercooked meat, poultry, seafood, or eggs to an infant.
- Allergens: Introduce any new food one at a time. Observe your child closely for signs of an allergic reaction (hives, swelling, vomiting, or difficulty breathing) and seek emergency medical care immediately if symptoms occur.
- Strict Supervision: 100% active, arm's-length adult supervision is required at all times while your child is eating or interacting with food.
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When to Talk to Your Pediatrician
Every child is different, and your pediatrician knows your baby best. If your baby has known allergies, was born prematurely, or has any feeding difficulties, consult your doctor before introducing new foods. If you ever observe signs of an allergic reaction — such as hives, swelling, vomiting, or difficulty breathing — seek emergency medical care immediately.
Age and preparation guidance informed by the USDA Dietary Guidelines for Americans, the World Health Organization's complementary feeding guidelines, ESPGHAN's (European Society for Paediatric Gastroenterology, Hepatology and Nutrition) position paper on complementary feeding, and EFSA's (European Food Safety Authority) scientific opinion on the introduction of complementary feeding. This content is independently created by Dalo Family Apps for informational purposes only and does not imply endorsement by or affiliation with any of these organizations.
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