Major health organizations recommend exclusive breastfeeding for the first 6 months of life, then continuing alongside solid foods until age 2 or longer. That said, any amount of breastfeeding provides measurable health benefits, and the “right” duration ultimately depends on what works for you and your child.
What the Guidelines Recommend
The World Health Organization, the American Academy of Pediatrics (AAP), and the Dietary Guidelines for Americans all align on the same core advice: breast milk alone for about the first 6 months, with appropriate solid foods introduced around that time while breastfeeding continues.
The AAP updated its guidance in 2022, extending its recommendation from “at least 1 year” to “2 years and beyond.” The shift came partly from new research showing additional benefits past the one-year mark, and partly from a desire to support parents who wanted to continue breastfeeding without feeling judged. Previously, many parents reported feeling shamed for nursing a toddler, despite the practice being common worldwide.
Globally, about 48% of infants under 6 months were exclusively breastfed in 2024, up from 37% in 2013. So while the goal is 6 months of exclusive breastfeeding, roughly half of families don’t reach that target for a variety of reasons, from milk supply challenges to work and childcare realities.
Benefits at Each Stage
The health benefits of breastfeeding are cumulative. They build over time, but they also start early. Even short periods of breastfeeding make a difference.
One of the clearest examples involves SIDS (sudden infant death syndrome). A large analysis combining data from eight major SIDS studies, covering more than 9,000 infants, found that breastfeeding for at least two months cuts the risk of SIDS by nearly half. Both partial and exclusive breastfeeding provided the same level of protection, and the longer breastfeeding continued, the greater the benefit.
Breast milk also reduces the risk of ear infections, respiratory illness, and gastrointestinal infections during the months a baby is nursing. For the parent, breastfeeding is associated with lower rates of breast cancer, ovarian cancer, and type 2 diabetes, with longer cumulative breastfeeding linked to greater risk reduction.
What Happens to Breast Milk Over Time
A common concern is that breast milk “loses its value” after a certain point. The opposite is closer to the truth. Research tracking milk composition over 18 months and beyond found that protein levels dip during the first 8 months, stabilize, and then rise again. Fat content stays steady for about 8 months and then increases significantly. In other words, breast milk adapts as your child grows, becoming more calorie-dense in the second year.
Breast milk also continues to deliver immune factors like antibodies well past the first year, though the exact concentrations at later stages are less well studied than the nutritional components. For toddlers who are eating a full diet of solid foods, breast milk serves as both a nutritional supplement and an ongoing source of immune support.
Introducing Solids at 6 Months
At around 6 months, most babies are developmentally ready to start solid foods. Signs of readiness include sitting up with minimal support, showing interest in what you’re eating, and being able to move food to the back of the mouth and swallow. During this transition period, breastfeeding typically continues at 4 to 6 sessions per day, gradually decreasing as solid food intake increases.
Solids at this stage complement breast milk rather than replace it. Iron-rich foods like pureed meats and iron-fortified cereals become especially important around 6 months because a baby’s iron stores from birth start to run low, and breast milk alone doesn’t provide enough.
When and How to Wean
There is no single “correct” age to stop breastfeeding. Some children naturally lose interest in nursing as they eat more solid foods, while others continue to want breast milk well into toddlerhood. The CDC describes weaning as a personal decision that will look different for every family.
If you’re ready to wean, a gradual approach is easier on both your body and your child. Start by dropping one nursing session per day and replacing it with a bottle, cup, or snack depending on your child’s age. Continue dropping sessions over several weeks. This slow timeline gives your body a chance to reduce milk production gradually, which helps prevent engorgement and reduces the risk of plugged ducts or mastitis.
Many parents find that daytime feedings are easiest to drop first, since distraction and activity make the transition smoother. The first morning and bedtime feedings tend to be the last to go, as they’re often tied to comfort and routine as much as hunger.
If 6 Months or 2 Years Isn’t Realistic
Guidelines describe the ideal, but breastfeeding happens in real life. Supply issues, returning to work, pain, medication needs, and mental health all play a role. The research consistently shows that some breastfeeding is better than none, and longer is generally better than shorter, but every week counts. A parent who breastfeeds for 3 months has still given their baby meaningful protection against infections and SIDS. A parent who combines breast milk with formula is still providing immune and nutritional benefits during those nursing sessions.
The updated AAP language was deliberately chosen to be nonjudgmental. The goal is to support parents in breastfeeding for as long as it works for them, not to set a pass-fail threshold.