Baby Not Drinking Enough Milk
Medically reviewed by Dr. Rachel Kim, MD, RDN · Pediatric Nutrition Specialist
Content reviewed against published AAP, AAP, CDC guidelines
Last reviewed:
Feeding challenges are one of the most common concerns new parents face. When it comes to baby not drinking enough milk, here is what the guidelines recommend.
The short answer
Babies naturally vary how much milk they drink from day to day, and a temporary dip in intake is usually nothing to worry about. Common causes include growth pattern changes, distractibility, teething, mild illness, or simply not being as hungry on a particular day. As long as your baby is having plenty of wet diapers and continuing to gain weight along their growth curve, they are likely getting enough.
Key takeaways
- Babies naturally vary how much milk they drink from day to day, and a temporary dip in intake is usually nothing to worry about. Common causes include growth pattern changes, distractibility, teething, mild illness, or simply not being as hungry on a particular day. As long as your baby is having plenty of wet diapers and continuing to gain weight along their growth curve, they are likely getting enough.
- Usually normal when: Your baby drinks different amounts at each feed but the overall daily intake is consistent
- Call your doctor if: Your baby has fewer than six wet diapers per day, has a dry mouth, sunken eyes, or no tears when crying, suggesting dehydration
- 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.”
Parents everywhere have the same worry. You are doing the right thing by looking into it.
What Parents Should Know
According to AAP, CDC guidelines, babies naturally vary how much milk they drink from day to day, and a temporary dip in intake is usually nothing to worry about. Common causes include growth pattern changes, distractibility, teething, mild illness, or simply not being as hungry on a particular day. As long as your baby is having plenty of wet diapers and continuing to gain weight along their growth curve, they are likely getting enough. At 0-1 month, newborns typically eat one to three ounces per feed, gradually increasing to three to four ounces by the end of the first month. They should feed eight to twelve times in 24 hours. If your newborn is consistently taking less than the expected amount, seems very sleepy and hard to wake for feeds, or is not producing at least six wet diapers a day by day five, contact your pediatrician. Jaundice, tongue tie, and other newborn conditions can cause decreased intake. It is generally considered normal when your baby drinks different amounts at each feed but the overall daily intake is consistent. However, you should contact your pediatrician promptly if your baby has fewer than six wet diapers per day, has a dry mouth, sunken eyes, or no tears when crying, suggesting dehydration.
Normal vs. Concerning
By Age
What to expect by age
0-1 month
Newborns typically eat one to three ounces per feed, gradually increasing to three to four ounces by the end of the first month. They should feed eight to twelve times in 24 hours. If your newborn is consistently taking less than the expected amount, seems very sleepy and hard to wake for feeds, or is not producing at least six wet diapers a day by day five, contact your pediatrician. Jaundice, tongue tie, and other newborn conditions can cause decreased intake.
1-3 months
Most babies consume 24 to 32 ounces of formula or an equivalent amount of breast milk per day at this age. Some babies are consistent drinkers while others vary widely from feed to feed. A temporary decrease in intake often coincides with becoming more alert and easily distracted. Try feeding in a quiet, dimly lit room if your baby seems distracted. If your baby has been sick, appetite usually returns as they recover.
3-6 months
Around four months, many babies become very interested in the world around them and may seem less interested in feeding. This is often called a "feeding strike" and is developmental, not medical. Breastfed babies may become very efficient feeders who can get a full feed in five to ten minutes, which parents sometimes mistake for not eating enough. If diaper output and weight gain are good, shorter feeds are not a problem.
6-12 months
Once solid foods begin, it is normal for milk intake to gradually decrease as food intake increases. At six to eight months, milk should still be the primary nutrition source with solids as a complement. By 12 months, aim for about 16 to 24 ounces of breast milk or formula per day. If your baby refuses milk but eats solids eagerly, try offering milk first before solids and limit juice or water that might fill them up.
1-2 years
After 12 months, toddlers need about 16 to 24 ounces of whole milk per day. Some toddlers go through phases of preferring food over milk or vice versa. If your toddler is getting dairy from other sources like yogurt and cheese, they may drink less milk. Do not force milk intake, but ensure they are getting adequate calcium and vitamin D from their overall diet.
What to Tell Your Pediatrician
- Describe when you first noticed baby not drinking enough milk and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if your baby consistently takes less than expected for their age and weight, and weight gain has slowed.
- Mention if your baby seems interested in feeding but pulls away, cries, or arches their back during feeds, which may suggest reflux or discomfort.
- Bring a list of any questions or observations you want to discuss at the appointment.
What Should You Do?
When to take action
- Your baby drinks different amounts at each feed but the overall daily intake is consistent
- Your baby has a day or two of decreased intake during a mild illness but resumes normal feeding as they recover
- Your baby is distracted during daytime feeds but makes up for it with longer nighttime nursing sessions
- Your baby is gaining weight well and has six or more wet diapers per day
- Milk intake decreases as solid food intake increases after six months
- Your baby consistently takes less than expected for their age and weight, and weight gain has slowed
- Your baby seems interested in feeding but pulls away, cries, or arches their back during feeds, which may suggest reflux or discomfort
- Your baby has gone from an established pattern to significantly less intake for more than a few days without an obvious cause
- Your baby has fewer than six wet diapers per day, has a dry mouth, sunken eyes, or no tears when crying, suggesting dehydration
- Your newborn is not waking to eat, is increasingly lethargic, or has lost more than 10 percent of their birth weight
What You Can Do at Home
- Keep track of when you notice baby not drinking enough milk — noting the time of day, duration, and any triggers can help your pediatrician.
- Remember that your baby drinks different amounts at each feed but the overall daily intake is consistent — this is generally within the range of normal.
- At 0-1 month, 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 your baby has fewer than six wet diapers per day, has a dry mouth, sunken eyes, or no tears when crying, suggesting dehydration.
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 baby not drinking enough milk normal?
When should I call the doctor about baby not drinking enough milk?
When is baby not drinking enough milk normal?
What causes baby not drinking enough milk?
What should I mention to my pediatrician about baby not drinking enough milk?
Is baby not drinking enough milk normal at 0-1 month?
Is baby not drinking enough milk normal at 1-3 months?
Should I go to the ER for baby not drinking enough milk?
Does baby not drinking enough milk go away on its own?
References
- [1]American Academy of Pediatrics. How Often and How Much Should Your Baby Eat? HealthyChildren.org. AAP
- [2]American Academy of Pediatrics. Amount and Schedule of Baby Formula Feedings. HealthyChildren.org. AAP
- [3]Centers for Disease Control and Prevention. How Much and How Often to Feed Infant Formula. CDC
Doctor Visit Checklist
Bring this checklist to your next pediatrician visit to discuss Baby Not Drinking Enough Milk.
Things to mention
- Describe when you first noticed baby not drinking enough milk and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if your baby consistently takes less than expected for their age and weight, and weight gain has slowed.
- Mention if your baby seems interested in feeding but pulls away, cries, or arches their back during feeds, which may suggest reflux or discomfort.
- Bring a list of any questions or observations you want to discuss at the appointment.
Observations to share
- Your baby consistently takes less than expected for their age and weight, and weight gain has slowed
- Your baby seems interested in feeding but pulls away, cries, or arches their back during feeds, which may suggest reflux or discomfort
- Your baby has gone from an established pattern to significantly less intake for more than a few days without an obvious cause
Urgent signs to report immediately
- Your baby has fewer than six wet diapers per day, has a dry mouth, sunken eyes, or no tears when crying, suggesting dehydration
- Your newborn is not waking to eat, is increasingly lethargic, or has lost more than 10 percent of their birth weight
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 baby not drinking enough milk are normal. Talk to your pediatrician if your baby has fewer than six wet diapers per day, has a dry mouth, sunken eyes, or no tears when crying, suggesting dehydration.
Trust your instincts. If something feels wrong, reach out to your pediatrician. Worrying about your baby means you care — that is a good thing.
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