Breastmilk is the major source of energy and nutrients for the infant for the first few months of life, and it continues to provide up to half or more of a child’s nutritional needs during the second half of the first year, and up to one third during the second year of life.
updated on:2025-01-30 08:41:55
Written by Dr. Sanjana V.B Bhms,dbrm,cdn
Breast Feeding; Breast milk nutritional value; Proper breast feeding practices
Breastmilk
is the most important food of the newborn baby and it protects the infant from
numerous infections. It is safe, clean and contains antibodies that provide
immunity to the baby against illnesses.
Breastmilk
is the major source of energy and nutrients for the infant for the first few
months of life, and it continues to provide up to half or more of a child’s
nutritional needs during the second half of the first year, and up to one third
during the second year of life.
Breast milk is easily digested and
efficiently used by the body of the infant compared to other kinds of milk.
Breast milk also contains bioactive factors that boosts the infant's immature immune system, providing protection against many types of infections.
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Nutritional value & facts
·
Breast milk contains
about 3.5 g of fat per 100 ml of milk, which provides about one half of the
energy content of the milk.
·
Breast-milk fat
contains long chain polyunsaturated fatty acids (docosahexaenoic acid or DHA,
and arachidonic acid or ARA) that are not available in other milks. These fatty
acids are important for the neurological development of a child.
·
The main carbohydrate
is lactose, a disaccharide. Breast milk contains about 7 g lactose per 100 ml,
which is more than in most other milks, and is another important source of
energy. Another type of carbohydrate present in breast milk is oligosaccharides,
which provide important protection against infection
·
The concentration of
protein in breast milk (0.9 g per 100 ml) is lower than in animal milks. No
overload on kidneys and easily digestible.
·
Breast milk of a
healthy mother normally contains sufficient vitamins for an infant except vitamin
D. The infant needs to be exposed to sunlight to generate endogenous vitamin D
– or vitamin D supplements are given under the directions from a health care
provider.
·
The breast milk
contains minerals iron and zinc in relatively low concentration, but their
bioavailability and absorption are high.
·
Breast milk contains immunity
boosting factors to protect against infections
a] Immunoglobulins:
Mainly secretory
immunoglobulin A (sIgA), which coats the intestinal mucosa and prevents
bacteria from entering the cells;
b] white blood cells which can kill micro-organisms;
c] whey proteins (lysozyme and lactoferrin) which can kill bacteria,
viruses and fungi;
d] oligosacccharides which prevent bacteria from attaching to mucosal
surfaces.
The protection provided by these factors
is uniquely valuable for an infant as they protect without causing the effects
of inflammation, such as fever, which can be dangerous for a young infant.
The secretory immunoglobulin A [ sIgA ] of breast milk contains antibodies formed in
the mother's body against the bacteria in her gut, and also against infections
that she had faced already. Therefore they protect against bacteria that are
particularly likely to be in the baby's environment.
·
Other bioactive
factors
Epidermal growth factor present in breast milk stimulates maturation of the lining of the
infant's intestine, making them able to digest and absorb nutrients. Also it
reduces the chances of being infected or sensitized to foreign proteins.
It has been suggested that other growth
factors present in human milk may help the development and maturation of nerves
and retina of eyes.
Why is colostrum- The first milk so
important to your child?
Colostrum
is the special milk that is secreted in the first 2–3 days after delivery. It
is produced only in scanty amounts, about 40–50 ml on the first day. However
this first milk is very vital for the baby’s health.
Colostrum is rich in white cells and
antibodies.
This
first milk colostrum contains an adequate amount of protein, minerals and
fat-soluble vitamins (A, E and K) than breast milk formed on later days.
Vitamin A is important for protection of
the eye and vision. It is important for the integrity of epithelial surfaces of
gut and other parts of the body.
Colostrum helps to protect the infant from
infections due to the presence of white cells and antibodies.
The epidermal growth factor helps to
prepare the lining of the gut to receive the nutrients in milk. It is important
that infants receive colostrum, and not other feeds, at this time.
Breast feeding
The breast milk production begins in
larger amounts between 2 and 4 days after delivery after the initial colostrum
milk secretion from breasts in small amounts.
Once breast milk production begins the breasts feel full and gradually its amount increases. On the third day, an infant is normally sucking about 300–400 ml per 24 hours, and on the fifth day 500–800 ml. From day 7 to 14, the milk is called transitional, and after 2 weeks it is called mature milk.
Why is breast feeding important for the
baby as well as mother?
Breast milk is rich in nutrients and immunity boosting antibodies and other factors. Therefore, to ensure the health of your baby, protecting from infections and deficiency diseases breast feeding is very important. It is the major source of food for the infant for about six months till the intake of other nutrient rich foods begin. It has been found that breastfed children perform better on intelligence tests and they are less likely to be overweight or obese. Women who breastfeed also have a reduced risk of breast and ovarian cancers.
What is Effective suckling?
If
a baby is well attached at the breast, then he or she can suckle effectively. This
is very important in breast feeding. Mothers and care givers during post
delivery period must ensure that baby is suckling the breast in the proper way
and breast milk intake is going on smoothly.
Effective suckling indicates that milk is
flowing into the baby's mouth. The baby takes slow, deep suckles followed by a
visible or audible swallow about once per second. Sometimes the baby pauses for
a few seconds, allowing the ducts to fill up with milk again.
When the baby starts suckling again, a few
times suckling will be done quickly, stimulating milk flow, and then the slow
deep suckles begin. The baby's cheeks remain rounded during the feed.
Towards the end of a feed, suckling
usually slows down, with fewer deep suckles and longer pauses between them.
This is the time when the volume of milk is less, but as it is fat-rich
hindmilk, it is important for the feed to continue suckling.
When the baby is satisfied, he or she usually releases the breast spontaneously. The nipple may look stretched out for a second or two, but it quickly returns to its resting form.
Signs of ineffective suckling
A baby who is poorly attached with the
breasts is likely to suckle ineffectively. In this situation baby may suckle
quickly all the time, without swallowing, and the cheeks may be drawn in as he
or she suckles showing that milk is not flowing well into the baby's mouth.
When the baby stops feeding, the nipple may stay stretched out, and look squashed from side to side, with a pressure line across the tip, showing that the nipple is being damaged by incorrect suction.
Consequences of ineffective suckling
If suckling is ineffective, transfer of
milk from mother to baby doesn’t happen. As the breast gets engorged , milk is
not removed ,ducts may get blocked and inflammation
sets in. Moreover, as the baby doesn’t get sufficient milk due to poor suckling
the weight of the baby reduces or child fails to gain weight .
The baby may pull away from the breast out of
frustration and refuse to feed;
the baby may be very hungry and continue
suckling for a long time, or feed very often;
the breasts may be over-stimulated by too
much suckling, resulting in oversupply of milk. All these are the out come of
poor or ineffective suckling.
Positioning the mother and baby for good attachment & effective suckling
To be well attached at the breast for effective
suckling of milk , a baby and his or her mother need to be appropriately
positioned. There are many positions for
effective suckling during feeding, but a few important points need to be followed in any position.
Position of the mother
The mother can be sitting or lying down or standing, if she wishes. However, she needs
to be relaxed and comfortable, and without strain, particularly of her back. If
she is sitting, her back needs to be supported, and she should be able to hold
the baby at her breast without leaning forward.
Position of the baby
The baby can breastfeed in several
different positions in relation to the mother: across her chest and abdomen,
under her arm , or alongside her body.
Whatever the position of the mother, and the baby ,four key points about the position of the baby's body that are important to observe.
The baby's body should be straight, not
bent or twisted.
The
baby's head can be slightly extended at the neck, which helps his or her chin
to be close in to the breast.
The baby should be facing the breast. The
nipples usually point slightly downwards, so the baby should not be flat
against the mother's chest or abdomen, but turned slightly on his or her back
able to see the mother's face.
The baby's body should be close to the
mother which enables the baby to be close to the breast, and to take a large
mouthful.
The infant should be supported. The baby
may be supported on the bed or a pillow, or the mother's lap or arm. She should
not support only the baby's head and neck. She should not grasp the baby's
bottom, as this can pull him or her too far out to the side, and make it difficult
for the baby to get his or her chin and tongue under the areola.
These points about positioning are
especially important for young infants during the first two months of life.
A few interesting facts about breast milk
· Hind milk [ milk secreted at the end of feeding] rich in fat
Breast milk contains about 3.5 g of fat
per 100 ml of milk, which provides about one half of the energy content of the
milk.
The fat is secreted in small droplets, and
the amount increases as the feed progresses. As a result, the hindmilk secreted
towards the end of a feed is rich in fat and looks creamy white, while the
foremilk at the beginning of a feed contains less fat and looks somewhat
bluish-grey in colour.
· Breast milk is easily digestible than other milk
The breast milk is superior to cow’s milk
or other kinds. The animal milks can overload the infant's
immature kidneys with waste nitrogen products. Breast milk contains less of the
protein casein, and this casein in breast milk has a different molecular
structure. It forms much softer, more easily-digested curds than that in other
milks. So no overload on kidneys.
Bile-salt stimulated lipase facilitates
the complete digestion of fat once the milk has reached the small intestine.
Fat in artificial milks is less completely digested.
Written by dr sanjana vb[ copyright]
References
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10. https://www.who.int/health-topics/breastfeeding#tab=tab_1
11. https://www.freepik.com/free-photo/side-view-woman-breastfeeding-baby-indoors_30577521.htm
Nutrition is crucial for child growth & development. Proteins ,carbs ,vitamins , minerals and healthy fats including omega fatty acids are very important for growth of body and mind.DHA or docosa hexanoic acid plays a key role in brain and neuronal development.
Breastmilk is the major source of energy and nutrients for the infant for the first few months of life, and it continues to provide up to half or more of a child’s nutritional needs during the second half of the first year, and up to one third during the second year of life.
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