Benefits for children over one year of age

Why should I breastfeed my baby past the first year?

The benefits of breastfeeding do not stop when the baby becomes a toddler or older child but continue for as long as the child breastfeeds. Extended breastfeeding (breastfeeding after the child has reached one year of age) has been shown to decrease malnutrition and illness, prevent infections, and reduce the risk of the child developing health problems like heart disease or stroke later in life. Breastfeeding benefits mothers too, reducing the risk of disease and promoting weight loss. There is no evidence of developmental or psychological harm from breastfeeding into the third year of life or longer. Rather this practice is recommended and is normal in many areas of the world.

A) Recommendations

Breastfeeding a child after the child has reached one year of age is sometimes called extended breastfeeding and is part of the normal breastfeeding continuum.

Nearly all organizations that aim to help mothers and children recommend that children breastfeed for two or more years. As many of the benefits of breastfeeding are related to how long babies and children breastfeed, no organization has recommended a limit on the duration of breastfeeding.

B) Breastfeeding children over one year of age

Mothers can face cultural barriers when breastfeeding a toddler or older child, yet there are many benefits and no evidence of developmental or psychological harm from breastfeeding into the third year of life or longer (Delgado 2017; Dettwyler 1995).

Mothers can breastfeed while pregnant if they are not at an increased risk of premature delivery and are gaining enough weight. After birth, they can continue to breastfeed an older child along with a new one. This is called tandem breastfeeding and has benefits for the mother and both children.

C) Benefits for children

Some mothers of toddlers and older children believe they are not producing much milk because their breasts don’t feel full anymore and they only express small amounts and therefore assume there is no point in breastfeeding. These are normal changes, as the breast becomes more efficient at making milk and the amount of milk made after one year slowly decreases (Kent 1999). 

1) Providing nutrients

Extended breastfeeding protects toddlers and older children from malnutrition (Lackey 2021; Prentice 1994).

At two years, mothers still produce between 95 millilitres (3 U.S. fluid ounces) and 730 ml (25  oz) of milk per day. Breast milk can provide one-third of a toddler’s calories (Onyango  2002; Scott 2016). Breast milk also provides significant amounts of other nutrients such as protein, vitamins, and iodine.

Table: Percent of Daily Nutrients Provided by Breast Milk Between 12 and 24 Months (Dewey 2001)


Percent (%) of Daily Requirement Provided by Breast Milk

Energy (calories)




Vitamin A




Vitamin B12


Vitamin C










Mature breast milk is relatively consistent in its makeup, even after one year of breastfeeding. For example, it provides a regular source of health-promoting bacteria.

There are small changes in some components. For example, carbohydrates decrease and the following increase:  

2) Protection from infection

Toddlers and older children who breastfeed have fewer ear, eye, throat, stomach, and overall infections (Ardıç andYavuz 2018; Bowatte et al. 2015; Frank et al. 2019; Rowland 2020).

For example, one study (Kørvel-Hanquist 2018) showed that breastfeeding for more than 18 months reduced the risk of ear infections by 23% compared with breastfeeding for less than 6 months.

3) Protection from chronic diseases

Extended breastfeeding appears to reduce the child’s risk of later  diabetes, heart disease, or stroke by reducing the child’s  waist circumference, blood pressure, and blood levels of cholesterol and other disease-promoting fats (Li 2021; Wong 2018).  

Extended breastfeeding reduces the child’s risk of obesity (Bell 2018; Kong 2021; Zheng 2020) and supports heathy body development (Gridneva 2020).

Breastfeeding past 12 months of age appears to decrease the risk of hay fever (environmental allergies), Crohn’s disease, and constipation (Agakisiyeva 2020; Han et al. 2019; Ng et al. 2015; Xu et al. 2017).

4) Benefiting brain development

Extended breastfeeding provides nutrients that allow for normal brain growth and prevents infection. Breastfeeding reduces a child's stress by calming them when hungry, thirsty, lonely, sad, in pain, tired, cold, and even bored. These effects probably combine to reduce inflammation and harmful stress and thereby optimize brain growth and development.

Studies have shown that extended breastfeeding improves the child’s motor skills, communication skills, and brain development (Grace 2017; Lee 2016;  Plunkett 2021; Victora 2015).

Long-term breastfeeding promotes bonding (Tharner 2012; Weaver  2017)  and supports mental health and relationships during the teen years (Fergusson 1999; Oddy 2010). 

5) Facilitating the transition into child care

If the mother is returning to work, continued breastfeeding can (Franco-Antonio 2021):

  • Minimize the number of changes for a child and continue to provide a familiar, warm, and safe environment.
  • Protect the child from infections resulting from exposure to other children in child care.
  • Protect the child from stresses caused by new child care arrangements.

D) Benefits for mothers

Breastfeeding has many benefits for mothers, and longer breastfeeding provides more benefits. Extended breastfeeding has been shown to  decrease the mother’s risk of the following:

  • Breast, ovarian, endometrial, and thyroid cancer (Cao 2015; Jeong 2017; Kim 2018) 
  • Breast cancer returning (Baglia 2019)
  • Type 2 diabetes (Gunderson 2018)
  • Endometriosis  (Farland 2017)
  • Rheumatoid arthritis  (Chen 2015)
  • High blood pressure (hypertension) (Qu 2018) 
  • High levels of unhealthy fats in the blood (Schwarz 2002)
  • Disease of the blood vessels of the heart and body (cardiovascular disease) (Ley et al. 2020; Schwarz 2002) 

Extended breastfeeding:

Parenting is easier when:

  • The child is healthier. 
  • The child can be quickly and easily calmed. 
  • Families have food security.


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