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Breastfeeding for 6 Months May Reduce ADHD Risk in Children, Study Finds
A new large-scale study from Norway suggests that exclusive breastfeeding for up to six months may help reduce the likelihood of children developing symptoms of Attention Deficit Hyperactivity Disorder (ADHD) during early childhood.
The research, which analyzed data from more than 37,600 families, found that children who were exclusively breastfed for longer periods showed fewer ADHD-related symptoms between the ages of three and eight.
ADHD is a neurodevelopmental disorder commonly characterized by inattention, hyperactivity, and impulsive behavior. Although it is usually diagnosed during childhood, symptoms can continue into adulthood for many individuals.
Breastfeeding linked to healthier brain development
Breast milk is widely recognized as the ideal source of nutrition for infants. It contains essential nutrients, including long-chain fatty acids, amino acids, antibodies, and beneficial bacteria that support both physical growth and brain development.
Researchers from the University of Bergen said understanding how breastfeeding influences the developing brain and immune system has become an important area of scientific research.
Longer exclusive breastfeeding, fewer ADHD symptoms
Published in the journal Biological Psychiatry, the study explored whether the duration of exclusive breastfeeding had any connection to later ADHD symptoms.
According to lead researcher Dr. Berit Skretting Solberg, children who were exclusively breastfed for longer periods—up to six months—consistently showed lower levels of ADHD symptoms at ages three, five, and eight.
The researchers found that each additional month of exclusive breastfeeding was associated with a gradual reduction in ADHD-related behaviors, with the strongest protective effect observed during the preschool years.
Findings consistent for both boys and girls
The study reported similar results for both male and female children. While the association remained visible at age eight, it was strongest when children were between three and five years old.
Researchers also observed that the protective effect increased with both the duration and exclusivity of breastfeeding.
Genetics also play a role
The team noted that genetics remain an important factor in ADHD risk. Previous studies have shown that mothers with ADHD symptoms may breastfeed for shorter periods and are also more likely to have children with similar symptoms. Likewise, infants who later develop ADHD-related behaviors may be more difficult to breastfeed.
To account for these factors, researchers adjusted their analysis for genetic risk, family background, and socioeconomic conditions. They also compared siblings within the same families who experienced different breastfeeding durations.
Even after these adjustments, the association between longer exclusive breastfeeding and lower ADHD symptoms remained statistically significant.
More research needed
While the findings are encouraging, researchers cautioned that the study was observational and does not prove that breastfeeding directly prevents ADHD.
Dr. Solberg said additional research is needed to better understand the biological mechanisms behind the association.
The research, which analyzed data from more than 37,600 families, found that children who were exclusively breastfed for longer periods showed fewer ADHD-related symptoms between the ages of three and eight.
ADHD is a neurodevelopmental disorder commonly characterized by inattention, hyperactivity, and impulsive behavior. Although it is usually diagnosed during childhood, symptoms can continue into adulthood for many individuals.
Breastfeeding linked to healthier brain development
Breast milk is widely recognized as the ideal source of nutrition for infants. It contains essential nutrients, including long-chain fatty acids, amino acids, antibodies, and beneficial bacteria that support both physical growth and brain development.
Longer exclusive breastfeeding, fewer ADHD symptoms
Published in the journal Biological Psychiatry, the study explored whether the duration of exclusive breastfeeding had any connection to later ADHD symptoms.
According to lead researcher Dr. Berit Skretting Solberg, children who were exclusively breastfed for longer periods—up to six months—consistently showed lower levels of ADHD symptoms at ages three, five, and eight.
The researchers found that each additional month of exclusive breastfeeding was associated with a gradual reduction in ADHD-related behaviors, with the strongest protective effect observed during the preschool years.
Findings consistent for both boys and girls
The study reported similar results for both male and female children. While the association remained visible at age eight, it was strongest when children were between three and five years old.
Researchers also observed that the protective effect increased with both the duration and exclusivity of breastfeeding.
Genetics also play a role
The team noted that genetics remain an important factor in ADHD risk. Previous studies have shown that mothers with ADHD symptoms may breastfeed for shorter periods and are also more likely to have children with similar symptoms. Likewise, infants who later develop ADHD-related behaviors may be more difficult to breastfeed.
Even after these adjustments, the association between longer exclusive breastfeeding and lower ADHD symptoms remained statistically significant.
More research needed
While the findings are encouraging, researchers cautioned that the study was observational and does not prove that breastfeeding directly prevents ADHD.
Dr. Solberg said additional research is needed to better understand the biological mechanisms behind the association.
