Breastfeeding may be linked to improved heart and metabolic health among women who experienced gestational diabetes, particularly during the first weeks after childbirth, according to a recent study reported by NDTV.
The study found that mothers who breastfed more intensively had lower triglyceride levels, higher levels of good cholesterol (HDL), and a healthier balance between bad cholesterol (LDL) and HDL compared with women who breastfed less intensively.
These findings are important because gestational diabetes does not necessarily mean that health risks disappear after childbirth, even when blood sugar levels return to normal.
A history of gestational diabetes may indicate a higher future risk of type 2 diabetes and certain cardiovascular risk factors. Blood lipid levels may also change during the postpartum period, making medical follow-up especially important.
What Did the Study Find?
Published in JAMA Network Open, the study included 470 women in Japan with a history of gestational diabetes. The participants underwent metabolic assessments approximately six to nine weeks after giving birth.
Researchers examined the relationship between the amount of breast milk consumed by the infant and the mother’s blood lipid levels.
Intensive breastfeeding was defined as the baby receiving at least 80% of their nutrition from breast milk. A total of 369 women met this definition.
Women who breastfed intensively had average triglyceride levels of approximately 67.2 mg/dL, compared with 116.1 mg/dL among those who did not breastfeed intensively.
Their average HDL cholesterol levels were also higher, at 73.9 mg/dL compared with 63.0 mg/dL. In addition, the LDL-to-HDL ratio was lower among intensive breastfeeding mothers, at 1.8 compared with 2.3.
After adjusting for several factors, intensive breastfeeding was associated with a 75% lower likelihood of having triglyceride levels of 150 mg/dL or higher.
However, the researchers found no clear difference in total cholesterol levels between the breastfeeding groups.
How Could Breastfeeding Affect Metabolism?
Producing breast milk requires energy and nutrients. This process may influence how the body manages energy, glucose, and fat.
Researchers believe that these metabolic changes may partly explain the association between breastfeeding and improved blood lipid levels.
The relationship remained after insulin sensitivity was taken into account, which is significant because insulin resistance is associated with gestational diabetes and metabolic disorders.
However, the exact biological mechanisms are not yet fully understood.
The study also cannot prove that breastfeeding alone caused the improvements. Other factors related to maternal health and lifestyle during the postpartum period may have contributed to the results.
Because the research focused on a relatively early stage after childbirth, further studies are needed to determine whether the potential benefits continue over the long term.
What Does This Mean for Mothers?
The findings suggest that breastfeeding may offer an additional metabolic benefit to women who previously experienced gestational diabetes, particularly regarding triglyceride and HDL cholesterol levels during the early postpartum period.
However, breastfeeding should not be considered a stand-alone method for preventing heart disease or diabetes, and it does not replace medical care.
Women with a history of gestational diabetes should continue monitoring their blood sugar, cholesterol, blood pressure, weight, and other risk factors according to their doctor’s recommendations.
Breastfeeding decisions should also take into account the mother’s health, the baby’s needs, and professional medical advice.
