Unit 8: Lifestyle Nutrition Flashcards
list 5 healthy practices to adopt in preparation of pregnancy
- achieve & maintain a healthy body weight
- choose an adequate and balanced diet
- be physically active
- receive regular medical care
- avoid harmful substances
describe the effect of diet on fertility
- malnutrition can decrease fertility
what can the ingestion of harmful substances (like drugs, alcohol, cigarretes) cause (4)
- miscarriage
- abnormalities
- alter genes or their expression
- interfere w fertility
what is the most potent predictor future health & survival of an infant
- infant birth weight
what correlates with infant birth weight
- pregnancy weight
how does being underweight correlate to infant birth weight
- causes low birth weight
what are the effects of low infant birth weight (6)
- more likely to contract diseases
- 40x more likely to die in the first month
- predispose to obesity, HTN, heart disease
- low IQ & educational disadvantages
how does being overweight correlate to infant birth weight
- can cause the child to be large for their gestational age
what are the effects of high infant birth weight (3)
- increased difficulty at birth
- higher incidence of gestational diabetes & HTN
- increased child’s risk for obesity, heart disease, type 2 DM, asthma
what supplement is recommended for women who are trying to become pregnant
- folate
- which is critical for growth & development
describe calorie needs during the first trimester of pregnancy; how does this change throughout pregnancyt
- does not require any additional calories
- as it progresses, the woman’s need for energy increases
how many extra calories are required during the 2nd trimester? 3rd?
- 2nd = 340
- 3rd = 450
describe protein recommendations during pregnancy; are protein supplements recommended
- slightly higher during 2nd and 3rd trimester
- but protein supplements are not recommended bc they can have negative outcomes for the fetus
describe the DRI recommendations for most vitamins & minerals during pregnancy
- most increase
- and it recommended that pregnant women consume a prenatal supplement throughout pregnancy & consume a nutrient dense diet
what are nutrients of special interest during pregnancy (7)
- folate
- vitamin B12
- vitamin D
- choline
- calcium
- iron
- zinc
what is the importance of folate in pregnancy
- required to reduce the risk of neural tube defects in the fetus
what is the importance of the neural tube
- critical for formation of the brain & spinal cord
what can occur with low folic acid (2)
- anencephaly (no brain)
- spina bifida
what implication does the importance of folic acid in pregnancy have
- pregnant women are recommended to take folic acid supplements
what is spina bifida
- occurs when the vertebrae of the spine fall fail to close around the spinal cord
= spinal cord left unprotected
what can vitamin B12 deficiency during pregnancy cause
- irreversible nervous system damage in the developing fetus
- which is not detected until the baby is born
what is the importance of vitamin D during preganncy
- plays a role in calcium metabolism in the fetus
what is the importance of choline during pregnancy
- vital for cell membranes
describe the quantities of choline during pregnancy
- major quantities are sent to the fetus, which may deplete the mother