Keeping people healthy week 3 Flashcards
Give an overview of breast milk
sole food for 6 months
provides immune protection
promotes maturation of gut and brain
protects mother’s health- spacing pregnancies, reduces cancer risk, helps with weight loss after birth
Describe the composition of breast milk
sugars - 75% mainly lactose
fat 4%
protein 1.3% - casein 0.4%
minerals
What is different about colostrum?
high protein, low in fat and sugar
How does breast milk provide immune protection?
macrophages, T cells, stem cells and lymphocytes
secretory immunoglobulin A - passive immunity
biologically active substances in the gut
alpha-lactalbumin; antibacterial and immune system properties
lactoferrin binds to iron in competition with bacterial pathogens
oligosaccharides - selectively encourages growth of probiotic organisms
How does breast milk encourage maturation of the gut?
epidermal growth factors - healing
neuronal growth factors - peristalsis
What is a condition that bottle fed infants are more likely to develop?
necrotising enterocolitis
How does breast milk encourage brain development?
long chain polyunsaturated fatty acids - decohexanoic acid
How long is breast feeding recommended for?
exclusively for 6 months
continuing for at least a year
How does prolactin work?
secreted by anterior pituitary gland in response to nipple stimulation
signals lactocytes to produce milk
prolactin critical in long term milk supply
How does oxytocin work?
Secreted in posterior pituitary in response to nipple stimulation
stimulates smooth muscle in alveoli to eject milk
let down refex
How is lactation controlled?
feedback inhibitor of lactation (FIL) secreted in milk
as milk volume increases, FIL blocks milk production
removing FIL allows further milk production
What are reasons that people stop breast feeding?
hungry baby sore / cracked nipples no milk "right time" not gaining weight family/ friends pressure
What can help breast feeding to be successful?
skin to skin contact soon after birth keep mother and baby together allow unrestricted feeds support mothers to breast feed at night use dummies with caution don't supplement
What are the pros of bottle feeding?
large volumes available at all times enables separation from mother father can give feeds supplies roughly same macronutrients as breast milk bottle fed babies tend to sleep longer
What are the cons of bottle feeding?
bottles need to be cleaned, sterilised and made up
formula milk is expensive
when out, equipment has to be carried and boiled water found
lacks all the biologically active elements of breast milk
places child at risk of SID, cognitive development, infection
