Chapter 10: Nutrition during Pregnancy and
Lactation
Nutritional Demands of Pregnancy
Energy needs
Reasons for increased need
To supply the increased fuel demanded by the metabolic workload for
both the mother and the fetus
To spare protein for the added tissue-building requirements
Amount of energy increase
First trimester: no increased energy need
Second trimester: energy need increases by 340 kcal/day
Third trimester: energy need increases by 452 kcal/day
Carbohydrate Needs
AMDR: 45%-65% total daily kilocalories
Minimum daily requirement increases from 130 g/day to 175 g/d
Fat needs
AMDR: 20-35% of total daily kilocalories
Reasons for increased need
Fetal growth and development
EPA and DHA recommendations
Recommendations vary between organizations
Protein needs
Reasons for increased need
Development of the placenta
Growth of maternal tissues
Increased maternal blood volume
Amniotic fluid
Growth of the fetus
Amount of protein increase
Minimum daily requirement increases from 46 g/day to 71 g/day
Food sources
Complete: eggs, milk, beef, poultry, fish, pork, cheese, soy products,
and other animal products
Incomplete: legumes and grains
Key mineral and vitamin needs
, Minerals
Calcium
Iron
Vitamins
Folate
Vitamin D
Folate
Builds mature red blood cells during pregnancy
Especially important during early periconceptional period (~2 months
before conception to week 6 of gestation)
Decreases incidence of neural tube defects (such as spina bifida and
anencephaly)
DRIs: daily folate intake of 600 mcg during pregnancy and 400 mcg/day
for nonpregnant women during childbearing years
May require folate supplements
Spina Bifida – A Neural Tube Defect
Weight gain during pregnancy
Amount and quality
Set weight goals according to mother’s pre-pregnancy nutritional
status and body mass index
Rate of weight gain
First trimester: about 1 to 2 kg (2 to 4 lb)
Thereafter: women with a prepregnancy BMI between 18.5 and
24.9 kg/m2 generally gain about 0.4 kg (14 oz) per week during the
remainder of the pregnancy
An insufficient or low maternal weight gain is a predictor of small for
gestational age (SGA) infants with increased risks for complications
Weight Gain During Pregnancy
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller garyionbattle. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.09. You're not tied to anything after your purchase.