Breastfeeding, even for a few days, linked to lower blood pr
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Babies who were breastfed, even for a few days, had lower blood pressure as toddlers and these differences in blood pressure may translate into improved heart and vascular health as adults, according to new research published today in the Journal of the American Heart Association, an open access journal of the American Heart Association.

Research has found that cardiovascular disease risk factors, including high blood pressure, can start in childhood. Studies have also confirmed breastfeeding is associated with lower cardiovascular disease risk in adulthood. However, the amount and length of time breastfeeding that is needed to achieve cardiovascular benefit has not been clear.

“This is the first study to evaluate the association of breastfeeding in the first days of life and blood pressure in early childhood,” said lead study author. “Infants who received even a relatively small amount of their mother’s early breast milk, also known as colostrum, had lower blood pressure at 3 years of age, regardless of of how long they were breastfed or when they received other complementary foods.”

Colostrum is known to be especially rich in growth factors, immunologic components and stem cells that are extremely beneficial to newborns and only found in human breastmilk.

Researchers used data from the ongoing Canadian CHILD Cohort Study – a study of over 3,000 children who were born between 2009-2012 and have been followed ever since to understand how early life experiences shape health and development. They analyzed infant feeding information collected from hospital records and caregiver questionnaires for nearly 2,400 children.

Among those children, 98% were breastfed to some extent, including 4% who received “early limited breastfeeding” defined as a few breastfeedings during the hospital stay. Only 2% of children in the study were not breastfed at all.

Among breastfed children, 78% were breastfed for six months or more and 62% were exclusively breastfed for at least three months. Exclusive breastfeeding meant breast milk only, without any formula, solid foods or other fluids since birth. On average, mothers who never breastfed were younger, more likely to smoke during pregnancy and less likely to have a post-secondary degree, compared to the mothers who breastfed briefly or beyond their hospital stay.

Researchers found:

-- At 3 years of age, the children who were never breastfed had higher blood pressure measures (average 103/60 mm Hg), compared to those who were breastfed for any duration (average of 99/58 mm Hg).
-- Among the infants who received only limited early breastfeeding while in the hospital as newborns, blood pressure measures were also lower (average of 99/57 mm Hg) compared to those who were never breastfed (average of 103/60 mm Hg).
-- Blood pressure among the toddlers who had been breastfed was lower regardless of their body mass index at age 3 or their mothers’ social, health or lifestyle factors.
-- Blood pressure was also lower among toddlers who had been breastfed, regardless of how long they were breastfed or if they received other complementary nutrition and foods.

“The benefits of sustained and exclusive breastfeeding are well documented for numerous health conditions, including respiratory infections and diarrheal disease during infancy, and chronic conditions including asthma and obesity later in life,” said senior study author. “This study suggests that for cardiovascular outcomes such as blood pressure, even a brief period of breastfeeding is beneficial. This points to colostrum as a key factor in shaping developmental processes during the newborn period. For many reasons, sustained breastfeeding should be strongly supported, and it is also important to understand that ‘every drop counts,’ especially in those critical first few days of life.”

Source: https://newsroom.heart.org/news/breastfeeding-even-for-a-few-days-linked-to-lower-blood-pressure-in-early-childhood
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