Feeding
How to Tell if Your Baby Is Getting Enough Milk
By Raised Editorial ยท
Unlike bottle feeding, you cannot see how many ounces a breastfed baby is drinking. This can cause severe anxiety for new parents. Here is how to clinically measure if your baby is getting enough.
One of the most terrifying aspects of breastfeeding a newborn is the lack of a measurement dial. When you feed a baby from a bottle, you know exactly how many ounces they consumed. When you breastfeed, the milk is invisible.
This lack of visibility causes immense anxiety. "They are crying again, are they starving?" "My breasts feel soft, is my milk gone?"
Fortunately, you do not need to see the milk going in if you know how to measure the output and observe the clinical signs of hydration. According to the American Academy of Pediatrics (AAP), here is exactly how to tell if your breastfed baby is getting enough milk.
The Gold Standard: Diaper Output
What goes in must come out. Diaper output is the most reliable, objective way to measure your baby's milk intake at home.
During the first week of life, the rule of thumb is: One wet diaper for every day of life, until day six.
- Day 1: At least 1 wet diaper, 1 dirty (meconium) diaper.
- Day 2: At least 2 wet diapers, 2 dirty diapers.
- Day 3: At least 3 wet diapers, 3 dirty diapers (stool transitioning to a lighter color).
After Day 6 and Beyond: Once your milk has fully "come in," the baseline increases significantly. Your baby should have:
- 6 to 8 heavily wet diapers every 24 hours. (The urine should be pale and odorless. Dark yellow or strong-smelling urine is a sign of dehydration).
- 3 or more mustard-yellow, seedy stools every 24 hours. (Note: After 4 to 6 weeks of age, breastfed babies may suddenly go days without pooping, which is normal as breastmilk is highly digestible, but in the first month, frequent pooping is crucial).
The Secondary Standard: Weight Gain
All babies lose weight immediately after birth as they shed excess fluids. A weight loss of 7% to 10% of their birth weight is considered biologically normal.
However, once your mature milk comes in (around day 3 to 5), the weight loss should stop.
- Your baby should regain their birth weight by 10 to 14 days of age.
- After regaining birth weight, a healthy breastfed infant should gain roughly 0.5 to 1 ounce (15 to 30 grams) per day during the first 3 months.
Weight checks are done at the pediatrician's office. Do not obsessively weigh your baby at home on a standard bathroom scale, as it is not sensitive enough to capture these tiny daily increments and will only cause unnecessary panic.
Behavioral and Physical Signs
In addition to diapers and weight, observe your baby's behavior and physical cues during and after feeding:
- Active Swallowing: You should hear or see rhythmic swallowing. It sounds like a soft "kuh" or sighing sound. If the baby is just fluttering their lips rapidly (pacifying) without swallowing, they are not actively transferring milk.
- Post-Feed Relaxation: After a good feed, a baby should appear "milk drunk." Their fists, which are often tightly clenched when hungry, should be open and relaxed. Their body should feel heavy and limp.
- Breast Softening: Your breasts may feel full or firm before a feed, and noticeably softer and lighter afterward.
What is NOT a Sign of Low Supply
Many mothers unnecessarily supplement with formula because they misinterpret normal biological behaviors as signs of starvation. The following are normal and do not mean your supply is dropping:
- Cluster Feeding: Feeding every 45 minutes all evening is normal newborn behavior, designed to boost your milk supply, not a sign that your breasts are empty.
- Soft Breasts: After the first few weeks, your breasts will stop feeling engorged. They will feel soft even when full of milk. This simply means your body has regulated its supply, not lost it.
- Fussiness: Babies cry for many reasons: gas, overstimulation, a wet diaper, or simply needing to be held. Fussiness alone does not equal hunger.