Module 3 - Independent Study Nutrition (Exam 2) 1 Flashcards
Influences on nutrition
- Age
- Baseline knowledge
- Culteral background
- Dietaryand exercise habits
Why is strong pre-conception nutrition good?
- Supports maternal wellness
- Supports growth and deelopment of healthy placenta
Possible exisiting nutritional compromise issues
Food Restrictions:
- Eating Disorders
- Personal Choice
- Knowledge deficits
- Financial Constraints
Others:
- Adolescent Age
- Multiple Gestation
- Closely-Spaced Pregnancies
- Body Mass Index <18.5 or >24.9
Optimal Weight Gain Pregnancy
25-35 lbs
For normal pre-pregnancy BMI
1st trimester Weight Gain
~1-4.5lbs
2nd and 3rd Trimesters
~1 pound/week
What does inadequate weight gain correlate with?
-
Low birth weights
- Less than or equal to 5.5 lbs or 2500 G. Birth weight is a major predictor of future health
-
Pre-Term Labor
- Neonatal compromise
What does excessive weight gain correlate with?
- Gestational Diabetes
- Macrosomia
- Dysfunctional labor/Cesarean birth
Weight Gain at Term Break Down
- Fat Stores ~7
- Blood Volume ~4
- Fluid Volume ~4
- Breasts ~3
- Uterus ~2.5
- Placenta ~1
- Amniotic Fluid ~2
- Baby ~7.5
- TOTAL = 31 lbs
Calorie requirements non-pregnant women 15-50 years of age
1,800-2,400/day
Calorie Requirements pregnant women 15-50 years of age
2,200-2,900/day
Caloric increase during the 1st trimester
No caloric increase
Caloric increase during the 2nd trimester
~340/day additional calories
Caloric increase during the 3rd trimester
~452 calories/day additional calories
Macronutrients
- Carbohydrates
- Protein
- Fats
Carbohydrates
Primary energy source
Protein
Tissue growth and repair
Fats
Energy source
Micronutrients
- Vitamins
- Minerals
Simple Carbohydrates
- Provide energy but few nutients
- Table Sugar (sucrose), candy, soda pop
Complex Carbohydrates
- Provide energy and nutrients
- Grains, rice, pasta, beans
- Fiber
- Slows gastric emptying
- Stimulates peristalsis
Non-Pregnant RDA Carbohydrates
130 G/Day
Pregnant RDA Carbohydrates
175 G/Day
How much should carbohydrates increase during pregnancy?
45 G
Protein Sources
- Animal Sources - Meats, fish, eggs, dairy
- Plant Sources - Legumes, nuts, seeds, grains
Non-Pregnant RDA Protein
46 G/Day
Pregnant RDA Protein
71 G/Day
How much should protein increase during pregnancy?
25 G
Protein Facts
- Source of amino acids
- Amino acids are nutrient substrates (building blocks of protein)
- Supports tissue growth and repair
Fats Facts
- Energy source
- Essential fatty acids
- Assist in fetal CNS development
- Omega-3 polyunsaturates
- Docosahexaenoic acid (DHA)
- Omega-3 polyunsaturates
- Assist in fetal CNS development
Fat Soluable Vitamins
A, D, E, K
Vitamin A
- Fat Soluable Vitamin
- Vision support/infection resistance
- Dark green, dark orange vegetables, eggs
Vitamin D
- Fat Soluable Vitamin
- Bone mineralization/skeletal structure
- Sunlight, fish/fish oils, fortified dairy products
Vitamin E
- Fat Soluable Vitamin
- Protects cells from oxidative stress
- Whole grains, vegetable oils, peanut butter
Vitamin K
- Fat Soluable Vitamin
- Coagulation - Exogenous vitamin K provided to neonates
- Green leafy vegetables
Water-Soluable Vitamins
B, C
Vitamin B
- B Complex Vitamins
- Co-enzyme factors in cellular function
- Folate/folic acid
Folate/Folic Acid
Vitamin B
Strong clinical evidence correlates inadequate levels of folate with higher incidence of neural tube defects
RDA Vitamin B (Folic acid) Childbearing-aged Women
400 mcg
RDA Vitamin B (Folic acid) Pregnancy
600 mcg
How much should Vitamin B (folic acid) increase during pregnancy?
200 mcg
Vitamin C
- Water-Soluable Vitamin
- Connective tissue/vascularity
- Beans, enriched grains
- Green leafy vegetables
- Oranges, strawberries, broccoli
Calcium
- Mineral
- Bone formation
- Cell membrane function
- Maternal calcium stores readily transfer to the fetus
- Dairy products, legumes, nuts, dried fruits, green leafy vegetables
Sodium
Limit high sodium foods
Iron
- Low maternal iron stores/ physiological anemia
- Supplementation 30 mg qd beginning in the 2nd trimester
- Iron supplements best takens with H20 or orange juice
Iron-deficiency anemia
- May correlate with preterm birth and maternal morbidity
- Mother’s physiology favors fetal growth
- Iron will transfer to the fetus, even when maternal stores are low
- Neonate draws on stored iron throughout the first 4-6 months of life
Iron Sources
HEME Iron
- Animal Sources
- Best absorbed
- Meat, fish, poultry, eggs
Non-HEME Iron
- Plant Sources
- Dried fruits, enriched grains, molasses, green leafy vegetables
Optimal nutrition source
wholesome foods
Women with adequate diets can readily meet nutritional needs EXCEPT
- Iron and Folate
- Vegetarian diets, dairy-free
Vegetarianism
- Variety of complementary plant proteins
- Legumes, rice, peanut butter, whole grains
- Soy products are complete proteins
PICA
Ingestion of non-nutrient substances
- Ice
- Clay
- Laundry starch or cornstarch
- Major concern is anemia (decreased Iron absorption)