About Soy Milk
Soy milk is a plant-based drink made from soybeans. For babies and toddlers, it can be a useful food in family meals, especially when parents choose an unsweetened, plain, fortified version. It can add variety and works well in oatmeal, smoothies, soups, and other recipes. Soy milk provides plant protein and, when fortified, can also supply calcium, vitamin D, and sometimes vitamin B12. It is not naturally as nutrient-dense as breast milk or infant formula for babies under 12 months, so it should not replace them as a main drink in the first year. After 12 months, fortified soy milk is one of the better plant-based milk alternatives for toddlers because its protein content is closer to cow's milk than many other non-dairy drinks. Soy is a common allergen, so introduce it thoughtfully. Offer a small amount the first time and watch for signs of allergy such as hives, vomiting, swelling, or breathing changes. Also check labels carefully, since flavored or sweetened soy milks may contain added sugar, and homemade soy milk is not a good substitute for commercially fortified products. Most babies can have soy milk from 6 months as a small amount mixed into foods, not as a main beverage. Around 12 months, fortified unsweetened soy milk can be offered in a cup if needed as a milk alternative. Continue to prioritize iron-rich foods and keep portions age-appropriate so soy milk does not crowd out appetite for meals.
How to serve by age
Use plain unsweetened soy milk in small amounts in oatmeal, mashed foods, or cooking. Breast milk or formula should remain your baby's main drink throughout the first year.
If soy has already been introduced safely, you can offer a few small sips in an open cup or straw cup for drinking practice. Do not use soy milk to replace breast milk or formula.
After 12 months, fortified unsweetened soy milk can be offered in a cup as a milk alternative. Choose versions fortified with calcium and vitamin D, and keep intake moderate so it does not reduce appetite for solid foods.
Toddlers can have fortified unsweetened soy milk with meals or snacks. Continue to prioritize iron-rich foods and avoid sweetened or flavored varieties.
Pairs well with
Safety & allergens
Soy milk itself is low choking risk when served from an open cup, straw cup, or mixed into foods. For babies under 12 months, use small amounts in meals rather than as a main drink. Avoid serving while your child is lying down, walking, or running.
What to watch for
Safety checklist
Storage & shelf life
Store unopened shelf-stable soy milk in a cool, dry place until opened. After opening, refrigerate and use within 3-5 days or according to the package directions.
Soy milk can be frozen for up to 3 months in a freezer-safe container with room for expansion. Thaw in the refrigerator and shake well before using, as separation may occur.
Nutrition
- Provides plant-based protein
- Fortified versions can provide calcium for bone health
- Often fortified with vitamin D and sometimes vitamin B12
- A useful dairy-free milk alternative after 12 months
- Not suitable as a main drink for babies under 12 months
- Soy is a common allergen
- Many flavored versions contain added sugar
- Unfortified or homemade soy milk may be low in key nutrients
Key nutrients
Nutrition facts
| Calories | 46kcal |
|---|---|
| Protein | 1.6g |
| Carbs | 5.3g |
| Fat | 2.0g |
| Sugar | 5.3g |
| Iron | 0.1mg |
| Calcium | 82.0mg |
| Potassium | 150mg |
| Vitamin A | 61.0µg |
| Zinc | 0.10mg |
per 100 g
In season
Common questions
When can babies eat Soy Milk?
Is Soy Milk a choking hazard?
Is Soy Milk a common allergen?
More first foods
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