PUBH 1517 - Nutrition in Pregnancy & Infancy 2

PUBH 1517 - Nutrition in Pregnancy & Infancy 2 -...

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Critical Periods Each organ & tissue type grows with If development of organ is limited during a critical period, recovery is impossible Poor development of fetus can cause vulnerability to various conditions later in life
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Nutrient Needs in Pregnancy Energy needs do not increase until 2 nd trimester, unless woman is underweight Extra energy need for pregnancy is only 300 calories/day, easily provided by 1 extra serving each from grains, vegetables, fruits 1 extra ounce of meat 1 extra serving of skim milk In addition to food pyramid servings recommended for all adults
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Comparison of Nutrient Recommendations for Nonpregnant, Pregnant, and Lactating Women
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Nutrients Needs, continued Additional 10 – 15 grams protein/day above need of nonpregnant woman (total of 60 grams/day) Vegan women need to emphasize protein- rich plant foods to meet these needs Essential fatty acids are very important. Including seafood regularly can help ensure a balance, but fish oil supplements are not recommended due to seeming to alter the course of pregnancy & labor with unknown effects
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Spina Bifida: A Neural Tube Defect Spina Bifida: A Neural Tube Defect
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Folate need increases to 600 ug/day Needed for cell proliferation & for formation & closure of neural tube, which develops to form Neural tube is supposed to close by around the 6 th week of gestation Failure to close is what results in a neural tube defect Anencephaly: upper end fails to close (usually fatal within a few days of birth) Spina bifida: lower end fails to close (much more common than anencephaly)
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Spina Bifida Cases range from mild to severe,
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PUBH 1517 - Nutrition in Pregnancy & Infancy 2 -...

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