If your baby is under 12 months old, do not stop infant formula unless your pediatrician gives you a safe feeding plan. Babies need breast milk, iron-fortified infant formula, or both as their main source of nutrition during the first year.
After your child turns 12 months, you can usually begin replacing formula with whole cow’s milk or a suitable fortified alternative. The easiest approach is to go slowly, replace one bottle at a time, and shift from bottles to cups. Your child may need several weeks to adjust, and that is normal.
When Can a Baby Stop drinking Formula?
Most healthy babies can stop infant formula around their first birthday. At this age, solid foods provide more nutrients, and whole cow’s milk can become part of a balanced diet.
The American Academy of Pediatrics recommends whole milk for many children from 12 to 24 months. Whole milk provides fat that supports brain growth. Children with certain health conditions may need a different milk choice, so ask your child’s clinician before making the switch.
Do not stop formula before 12 months without medical advice
Before age 1, cow’s milk does not provide the right balance of protein, fat, vitamins, and minerals for an infant. It may also raise the risk of iron-deficiency anemia and place too much strain on a young baby’s kidneys.
Do not replace formula with:
- Whole cow’s milk before 12 months
- Almond, oat, rice, coconut, or other plant-based drinks
- Juice or water as the main drink
- Homemade formula
- Diluted formula
- Toddler drinks marketed as a replacement for infant formula
Some babies need formula beyond 12 months because of poor growth, food allergies, feeding problems, prematurity, or another medical need. In these cases, the child’s health professional should guide the transition.
The Centers for Disease Control and Prevention provides additional guidance on cow’s milk and milk alternatives.
How to Wean a Baby Off Formula
The safest method is to make a gradual change after 12 months. Start by replacing one formula feeding with milk in a cup. Once your child accepts that change, replace another feeding.
Step 1: Choose the easiest feeding to replace
Begin with a daytime bottle that your baby seems less attached to. Many parents find that the mid-morning or afternoon feed is easier to change than the first bottle of the day or the bedtime bottle.
Offer milk in:
- An open cup
- A straw cup
- A small training cup
- A regular cup held by an adult
Avoid replacing the bottle with a milk-filled sippy cup all day. Constant sipping can increase the risk of tooth decay and may reduce your child’s appetite for meals.
Step 2: Offer milk with food
Serve milk with breakfast, lunch, or a snack. Food makes the new drink feel like part of a meal rather than a sudden loss of the bottle.
A simple first change might look like this:
- Replace the afternoon formula bottle with 4 ounces of whole milk in a cup.
- Keep the morning and bedtime formula feeds for now.
- After several days, replace another formula feed if your child is eating and drinking well.
Your child may drink less milk at first. That is usually fine if they eat a varied diet, have regular wet diapers, and continue to grow as expected.
Step 3: Remove one bottle every few days
There is no required number of days for each step. Some children adjust in two weeks. Others need a month or longer.
You can use this general plan:
| Time | Change |
|---|---|
| Days 1–4 | Replace one daytime formula feed with milk in a cup |
| Days 5–8 | Replace a second daytime formula feed |
| Days 9–14 | Replace another bottle, often the morning or evening bottle |
| After two weeks | Work on the bedtime bottle if it remains |
This is an example, not a rule. Slow down if your child becomes very upset, eats much less, or develops constipation.
Step 4: Tackle the bedtime bottle last
The bedtime bottle often provides comfort, not just nutrition. Replace it with a predictable routine, such as:
- Dinner
- Milk in a cup
- Bath
- Tooth brushing
- Books or quiet play
- Cuddling
- Bed
Do not put your child to sleep with a bottle of milk or formula. Milk that pools around the teeth can cause early childhood cavities.
Step 5: Move toward regular meals and snacks
By about 12 months, many children eat three meals and two or three snacks each day. Offer foods from several groups:
- Fruits and vegetables
- Whole grains
- Meat, poultry, fish, eggs, beans, or tofu
- Yogurt and cheese
- Nut or seed butter in a safe form
- Iron-rich foods
Cut food into safe sizes and shapes. Avoid choking hazards such as whole grapes, nuts, popcorn, hard raw vegetables, chunks of meat, and spoonfuls of sticky nut butter.
How Much Milk Does a Toddler Need?
Many children ages 12 to 24 months need about 16 to 24 ounces of whole milk per day, according to the American Academy of Pediatrics. Some children need less, especially when they eat yogurt and cheese.
More milk is not always better. Too much milk can:
- Reduce hunger for iron-rich foods
- Contribute to iron-deficiency anemia
- Cause constipation in some children
- Add more calories than a child needs
- Make cup and bottle weaning harder
Milk is part of the diet. It should not replace meals.
A sample daily pattern
This example shows how milk can fit into a toddler’s day:
- Breakfast: eggs, toast, fruit, and 4 ounces of milk
- Morning snack: yogurt or fruit
- Lunch: beans, rice, vegetables, and water
- Afternoon snack: cheese and crackers
- Dinner: chicken, pasta, vegetables, and 4 ounces of milk
- Before bed: water after tooth brushing
Your child may need more or less food and milk. Appetite often changes from day to day. Look at eating patterns over a week rather than judging one meal.
What if my child drinks more than 24 ounces?
Do not panic over one high-milk day. Instead, offer milk at meals, serve water between meals, and avoid using milk as a reward or way to calm every upset.
If your child regularly drinks more than about 24 ounces, eats very little solid food, looks pale, has hard stools, or has poor weight gain, contact the child’s clinician.
Should You Mix Formula With Cow’s Milk?
You can sometimes use a gradual blend after 12 months, but replacing feeds directly is simpler and avoids preparation errors.
If you mix them, prepare the formula exactly as the label states using the correct amount of water. Then add the prepared formula to milk. Never add formula powder directly to cow’s milk, and never dilute formula with extra water.
A direct replacement may work better:
- Offer the usual formula in the morning.
- Give whole milk in a cup with lunch.
- Continue replacing one formula feeding at a time.
- Keep prepared formula refrigerated and use it within the time stated on the label.
Do not leave formula or milk at room temperature for long periods. Follow the product label for storage and discard times.
What If Your Baby Refuses Milk?
Many toddlers refuse cow’s milk at first. Refusal does not always mean a problem. A child may dislike the taste, prefer the familiar bottle, or simply not be hungry.
Try these steps:
- Offer milk when your child is calm, not very hungry or tired.
- Use a cup instead of a bottle.
- Serve milk cold or slightly warm, based on your child’s preference.
- Offer a small amount, such as 2 to 4 ounces.
- Serve milk with a meal.
- Give water between meals.
- Keep offering it without pressure.
Do not force your child to finish a cup. Pressure can make refusal stronger.
Milk is not the only source of calcium
A child who drinks little milk may still get calcium and vitamin D from foods such as:
- Plain yogurt
- Cheese
- Fortified soy milk
- Foods made with fortified dairy or soy products
Fortified soy milk is the plant-based drink most similar to cow’s milk in protein and nutrition. Almond, oat, rice, and coconut drinks vary widely and may not provide enough protein, fat, or calories for a growing toddler.
Check the nutrition label and ask your pediatrician or a registered dietitian if your child cannot have dairy or soy.
How to Wean From the Bottle, Not Just Formula
Formula weaning and bottle weaning are related but different goals. A toddler can stop formula yet continue drinking milk from a bottle, but long-term bottle use can affect teeth and make the transition harder.
The American Academy of Pediatrics advises moving from bottles to cups during the second year, with many children making the change between 12 and 18 months.
Use a clear plan:
- Stop offering bottles during the day.
- Give milk with meals in a cup.
- Offer water between meals.
- Keep the bottle-free rule consistent.
- Replace the bedtime bottle with a routine.
- Brush teeth twice daily with a small amount of fluoride toothpaste.
If your child cries for the bottle, comfort them in another way. Hold them, read a book, sing a song, or offer a favorite stuffed animal if it is safe for sleep.
Common Mistakes When Stopping Formula
A few common mistakes can make formula weaning harder or unsafe.
Stopping all formula suddenly
A sudden change may lead to distress, poor intake, or a power struggle. Gradual replacement is often easier, though a clinician may recommend a faster change for a specific medical reason.
Giving too much milk
Milk can fill a toddler’s stomach quickly. A child who drinks large amounts may skip foods that provide iron, fiber, and other nutrients.
Using plant-based drinks without checking nutrition
Many plant-based drinks are not nutritionally equal to cow’s milk. Read the label and seek advice if your child has an allergy, poor growth, or a restricted diet.
Putting a child to bed with milk
Milk at bedtime can sit on the teeth for hours. Give milk before brushing, then offer water if your child needs a drink overnight.
Diluting formula
Adding extra water can lower the calorie and nutrient content. It can also disturb the balance of salts in the body. Always mix formula exactly as directed.
Turning every refusal into a replacement bottle
If a toddler refuses lunch and receives a bottle right away, the child may learn to wait for the bottle. Offer the meal, allow a reasonable amount of time, and keep the next planned snack or meal predictable.
When to Call Your Pediatrician
Call your child’s health professional if your child:
- Is younger than 12 months and you want to stop formula
- Has poor weight gain or weight loss
- Has fewer wet diapers than usual
- Refuses most food and drinks
- Vomits often or has ongoing diarrhea
- Has blood in the stool
- Has signs of an allergic reaction
- Has severe constipation
- Drinks very little after formula is reduced
- Has a condition that affects digestion, growth, or feeding
- Was born prematurely and has special nutrition needs
Seek emergency care for trouble breathing, swelling of the lips or face, blue or gray skin, extreme sleepiness, or signs of severe dehydration.
A pediatrician may refer you to a registered dietitian, feeding therapist, or pediatric dentist when needed.
Frequently Asked Questions
Can I stop formula at 10 months?
Usually, no. Most babies need breast milk or iron-fortified infant formula until around 12 months. Ask your pediatrician before changing the main milk source.
Can my 12-month-old drink 2% or skim milk?
Whole milk is usually recommended from 12 to 24 months because toddlers need dietary fat for growth and brain development. A clinician may recommend reduced-fat milk for a child with specific health or weight concerns.
Does my toddler need toddler formula?
Most healthy toddlers do not need toddler formula or toddler milk. A balanced diet with an appropriate milk source is usually enough. Some children do need specialized nutrition, so follow your clinician’s advice.
What if my baby wants formula at night?
After 12 months, replace the night bottle with a cup of milk earlier in the bedtime routine, followed by tooth brushing. Comfort your child with cuddles, songs, or books instead of returning to a bottle.
Can I switch from formula to soy milk?
Fortified, unsweetened soy milk may be a suitable alternative for some children after 12 months. Check with your pediatrician, especially if your child has a milk allergy, soy allergy, poor growth, or a limited diet.
The Bottom Line
To wean your baby off formula, wait until around 12 months unless your pediatrician gives different instructions. Replace one formula feeding at a time, offer milk in a cup with meals, keep milk intake moderate, and move away from bottles during the second year.
Start with one easy daytime bottle. Keep the routine calm and consistent. If your child eats poorly, loses weight, has unusual symptoms, or needs special nutrition, contact the pediatrician before continuing.
Sources
- American Academy of Pediatrics: Recommended Drinks for Children Age 5 and Younger
- American Academy of Pediatrics: Weaning From the Bottle
- Centers for Disease Control and Prevention: Cow’s Milk and Milk Alternatives
- Centers for Disease Control and Prevention: Foods and Drinks for 6 to 24 Months
- U.S. Food and Drug Administration: Infant Formula Preparation and Storage
