Major health organizations recommend exclusive breastfeeding for the first 6 months of life, then continued breastfeeding alongside solid foods for at least 2 years. In practice, most families in the United States breastfeed for a shorter period. Among babies born in 2022, about 62% were still breastfeeding at 6 months, and roughly 41% were still breastfeeding at 12 months.
What Health Organizations Recommend
The World Health Organization, UNICEF, and the American Academy of Pediatrics all align on the same core guidance: babies should receive only breast milk for approximately the first 6 months, with no other foods or liquids, including water. After that, solid foods are introduced while breastfeeding continues for at least 2 years or longer, as long as both parent and child want to keep going.
The AAP updated its position in 2022 to explicitly recommend breastfeeding for at least 2 years, up from its previous benchmark of 12 months. This shift reflected growing evidence that the health benefits of breastfeeding continue well past a baby’s first birthday.
Health Benefits Increase With Duration
Breastfeeding operates on a dose-response basis, meaning longer durations tend to produce greater health benefits for both the baby and the nursing parent.
For infants, the protection is significant. Babies aged 6 to 12 months who weren’t breastfed had 1.8 times the risk of dying compared to those who were. For children between 12 and 23 months, that risk jumped to 2 times greater. Breastfeeding for 7 months or more also reduced the risk of childhood obesity by about 22%.
For the nursing parent, breastfeeding beyond 12 months was linked to a 26% lower risk of breast cancer and a 37% lower risk of ovarian cancer. The relationship with type 2 diabetes followed a clear pattern: each additional 12 months of lifetime breastfeeding (across all children) reduced diabetes risk by about 9%, with an overall 32% reduction among those who breastfed longest.
When Babies Start Solid Foods
Around 6 months, most babies show signs they’re ready to start eating solid foods alongside breast milk. These signs are developmental, not calendar-based, so the exact timing varies. You’re looking for a few key milestones happening together: your baby can hold their head up steadily, sit with some support, has roughly doubled their birth weight (reaching at least about 13 pounds), and shows obvious interest in food by watching you eat and opening their mouth when food comes near.
Starting solids doesn’t mean stopping breastfeeding. The two overlap for months or even years. In the early stages of solid food, breast milk still provides the majority of a baby’s nutrition, with food serving more as practice and exploration. Over time, solids gradually take on a larger share of the diet.
Why Many Families Stop Earlier
Despite the 2-year recommendation, a significant gap exists between guidelines and reality. In the U.S., nearly 4 in 10 babies are no longer breastfeeding by their first birthday. Several factors drive early cessation, and they tend to overlap.
Returning to work is the most commonly cited barrier. In some cases, mothers stop breastfeeding as early as 2 months after birth when employment resumes. The logistics of pumping during a workday, storing milk, and maintaining supply while separated from a baby are substantial, particularly in jobs without dedicated break time or private space.
Concerns about low milk supply are also pervasive, though perceived insufficient supply and actual insufficient supply are not the same thing. Many parents worry their baby isn’t getting enough milk based on fussiness or frequent feeding, which can lead to early supplementation with formula and a gradual decline in breastfeeding. Breast pain, nipple infections, and other physical complications push some parents to stop sooner than planned as well.
Age plays a role too. Parents younger than 20 and those older than 35 are both less likely to breastfeed exclusively for 6 months compared to those in between. Cesarean delivery, postpartum fatigue, and inadequate weight gain in the baby are additional factors. Family dynamics matter: lack of support from a partner or extended family, or active pressure from relatives to introduce other foods early, contributes to shorter breastfeeding durations in many communities. Fewer prenatal care visits and not having a breastfeeding plan before birth are also associated with stopping sooner.
There’s No Single “Right” Timeline
The 6-month and 2-year benchmarks represent goals based on population-level health data. They describe what produces the best outcomes on average, not a pass-fail threshold. A baby breastfed for 4 months still received meaningful immune protection. A baby breastfed for 14 months got benefits that a baby weaned at 6 months did not.
How long any individual baby is breastfed depends on a mix of biology, logistics, and personal choice. Some babies self-wean before age 2, gradually losing interest as they eat more solid food. Others would happily continue for years if given the option. In many cultures worldwide, breastfeeding into toddlerhood and beyond is the norm, not the exception. The clearest takeaway from the evidence is that any amount of breastfeeding provides health benefits, and those benefits grow the longer it continues.