When Should My Baby Switch from Bottle to Cup?
The short answer
The AAP recommends beginning to introduce cups around 6 months and weaning from bottles by 12-15 months. Prolonged bottle use can lead to tooth decay, excess calorie intake, and delayed oral motor development. Start by replacing one bottle with a cup and gradually replace the rest. The bedtime bottle is typically the last to go.
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By Age
What to expect by age
Bottles are appropriate and necessary at this age. No need to think about cup transition yet.
Around 6 months, begin introducing a cup for small sips of water with meals. This is just practice and not meant to replace bottles yet.
Continue cup practice. Let baby explore open cups held by you, straw cups, and 360 cups to find which they prefer. Bottles still provide most liquid nutrition.
Start replacing one bottle per day with a cup, beginning with the one baby is least attached to. Offer milk or formula in a cup at mealtimes. Keep the bedtime bottle last.
Aim to have bottles fully discontinued by 15 months. Replace the final bottle (usually bedtime) with a cup of milk 30 minutes before bed as part of the bedtime routine. If transition is difficult, go cold turkey for 3-5 days or dilute bottle milk with water while offering full milk in a cup.
What Should You Do?
When to take action
- Baby shows interest in cups around 6-9 months
- Transition takes several weeks to complete
- Baby is reluctant to give up the bedtime bottle but adjusts within a week
- Baby is over 18 months and completely refuses all cups
- Baby has tooth decay from prolonged bottle use
- You need strategies for a resistant toddler
- Baby has significant tooth decay from bottle use
- Baby is choking on bottle contents while lying down
Sources
Related Resources
Trust your instincts. If something feels wrong, reach out to your pediatrician.
Worrying about your baby means you care. That is a good thing.
Related Feeding Concerns
Weaning Off the Bottle
The AAP recommends beginning the transition from bottles to cups around 12 months and completing it by 18 months. Prolonged bottle use is associated with tooth decay, excess calorie intake, and iron deficiency anemia from drinking too much milk. A gradual approach that replaces one bottle at a time with a cup usually works best and causes less distress for everyone.
Toddler Still Using a Bottle
The AAP recommends weaning from the bottle by 12 to 18 months of age. Prolonged bottle use, especially with milk or juice at bedtime, can contribute to tooth decay, ear infections, and excessive calorie intake. But if your toddler is still attached to their bottle, you are not alone. Many families find this transition challenging, and there are gentle strategies that can help make the switch to cups.
Sippy Cup vs Straw Cup: Which Is Better?
Speech therapists and pediatric dentists generally recommend straw cups and open cups over traditional spout sippy cups. Sippy cups require a sucking motion similar to a bottle, while straw cups develop more mature oral motor patterns important for speech. Open cups help develop lip and jaw control. If you use a sippy cup, consider it a transitional tool rather than a long-term solution.
When to Introduce Allergens to Baby
Current guidelines recommend introducing common allergens (peanut, egg, cow's milk products, tree nuts, wheat, soy, fish, shellfish, sesame) starting around 4-6 months when your baby is developmentally ready for solids. The landmark LEAP study showed that early introduction of peanuts (by 4-6 months) reduced peanut allergy risk by 80% in high-risk infants. Do not delay allergens - the old advice to wait until 1-3 years has been reversed because early exposure actually prevents allergies.
I'm Worried My Baby Is Aspirating During Feeds
Aspiration means liquid or food enters the airway instead of the stomach. Occasional coughing during feeds is common and does not usually indicate aspiration. True aspiration is less common and may present as recurrent respiratory infections, a wet or gurgly voice after feeds, or chronic cough. If you are concerned, a swallow study can provide a definitive answer.
Could My Baby Be Aspirating During Feeding?
Aspiration occurs when food or liquid enters the airway instead of the esophagus. Signs include coughing or choking during every feed, a wet or gurgly voice after eating, recurrent chest infections, and breathing changes during meals. Silent aspiration can occur without obvious coughing. If you suspect aspiration, contact your pediatrician as a swallowing study can diagnose it.