When Should My Baby Switch from Bottle to Cup?
Medically reviewed by Dr. Rachel Kim, MD, RDN · Pediatric Nutrition Specialist
Content reviewed against published AAP, CDC guidelines
Last reviewed:
Feeding challenges are one of the most common concerns new parents face. When it comes to when should my baby switch from bottle to cup, here is what the guidelines recommend.
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.
Key takeaways
- 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.
- Usually normal when: Baby shows interest in cups around 6-9 months
- Call your doctor if: Baby has significant tooth decay from bottle use
- Varies by age — see the age-by-age breakdown below
“The AAP recommends exclusive breastfeeding for approximately 6 months after birth. Furthermore, the AAP supports continued breastfeeding, along with appropriate complementary foods introduced at about 6 months, for 2 years or beyond.”
Thousands of parents search for this exact thing. You are not alone.
What Parents Should Know
According to AAP, CDC guidelines, 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. At 0-3 months, bottles are appropriate and necessary at this age. No need to think about cup transition yet. It is generally considered normal when baby shows interest in cups around 6-9 months. However, you should contact your pediatrician promptly if baby has significant tooth decay from bottle use.
Normal vs. Concerning
By Age
What to expect by age
0-3 months
Bottles are appropriate and necessary at this age. No need to think about cup transition yet.
4-6 months
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.
6-9 months
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.
9-12 months
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.
12-24 months
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 to Tell Your Pediatrician
- Describe when you first noticed when should my baby switch from bottle to cup and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if baby is over 18 months and completely refuses all cups.
- Mention if baby has tooth decay from prolonged bottle use.
- Let your doctor know if you have noticed any related concerns, such as changes in feeding, sleep, or movement patterns.
- Bring a list of any questions or observations you want to discuss at the appointment.
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
What You Can Do at Home
- Keep track of when you notice when should my baby switch from bottle to cup — noting the time of day, duration, and any triggers can help your pediatrician.
- Remember that baby shows interest in cups around 6-9 months — this is generally within the range of normal.
- At 0-3 months, focus on observation rather than intervention unless your pediatrician advises otherwise.
- Offer feeding in a calm, distraction-free environment. Avoid forcing or pressuring your baby to eat.
- While monitoring at home, seek immediate care if baby has significant tooth decay from bottle use.
Related Conditions
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.
Related Resources
Milestone Checklists by Age
Track your baby's developmental milestones from birth to 5 years with age-specific checklists.
Feeding & Nutrition Guide
Complete guide to breastfeeding, formula feeding, and solid food introduction.
Month-by-Month Development
Detailed monthly development guides from birth through 24 months.
When to Call the Doctor
General guide on when to call the pediatrician, visit urgent care, or go to the ER.
Frequently asked questions
Is when should my baby switch from bottle to cup normal?
When should I call the doctor about when should my baby switch from bottle to cup?
When is when should my baby switch from bottle to cup normal?
What causes when should my baby switch from bottle to cup?
What should I mention to my pediatrician about when should my baby switch from bottle to cup?
Is when should my baby switch from bottle to cup normal at 0-3 months?
Is when should my baby switch from bottle to cup normal at 4-6 months?
Should I go to the ER for when should my baby switch from bottle to cup?
Does when should my baby switch from bottle to cup go away on its own?
References
Doctor Visit Checklist
Bring this checklist to your next pediatrician visit to discuss When Should My Baby Switch from Bottle to Cup?.
Things to mention
- Describe when you first noticed when should my baby switch from bottle to cup and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if baby is over 18 months and completely refuses all cups.
- Mention if baby has tooth decay from prolonged bottle use.
- Let your doctor know if you have noticed any related concerns, such as changes in feeding, sleep, or movement patterns.
- Bring a list of any questions or observations you want to discuss at the appointment.
Observations to share
- 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
Urgent signs to report immediately
- Baby has significant tooth decay from bottle use
- Baby is choking on bottle contents while lying down
My notes
From ismybabyalright.com — free, evidence-based baby health guides
All content follows our editorial policy and is reviewed against published clinical guidelines.
2,705 evidence-based guides6 authoritative medical sources5 medical advisory board members
Related Resources
Bottom line
Most cases of when should my baby switch from bottle to cup are normal. Talk to your pediatrician if baby has significant tooth decay from bottle use.
Trust your instincts. If something feels wrong, reach out to your pediatrician. Worrying about your baby means you care — that is a good thing.
Was this page helpful?
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.
When Does My Baby Need Amino Acid Formula?
Amino acid-based formulas (also called elemental formulas) are prescribed for babies with severe cow's milk protein allergy, multiple food protein intolerances, or conditions like eosinophilic esophagitis who cannot tolerate standard or extensively hydrolyzed formulas. They are the most hypoallergenic formula available because the proteins are broken down into individual amino acids, making allergic reactions virtually impossible.