NUTR 2050 Lecture Notes - Lecture 5: Constipation, Miscarriage, Aspartame
1 Jun 2018
School
Department
Course
Professor
UNIT 5
Definitions
• Gestational age
o Assessed from date of contraception
o Average pregnancy is ~38 weeks
• Menstrual age
o Assessed from onset of last menstrual period
o Average pregnancy is ~40 weeks
Maternal Vitamin Metabolism
• Pregnancy: a pro-oxidative state
• Increase oxidation and free radical formation results from
o Increase energy production in mitochondria
o Insulin resistance during pregnancy
• Adequate antioxidant nutrients guard against free radical damage
DRIs by Trimester
• Trimester 1
o Increases
▪ Fluids
▪ Carbs and protein
▪ Fibre
▪ Alpha-linolenic acid
▪ Thiamin, Riboflavin, Niacin, B6, Folate, B12
o No increases in
▪ Calorie dietary requirements
• Trimester 2
o Increase kcal by 340
• Trimester 3
o Increase kcal by 452
Nutrients of Concern
• Need for water
o Increased levels of thirst
o ~9 cups fluid/day
o Water, diluted fruit juice, other unsweetened beverages
• Folic acid
o Necessary for the synthesis of DNA, organ, and tissue growth
• Omega-3 fatty acids
o Keep maternal blood supply viscous
o Decrease inflammation
o Dilute blood vessels
find more resources at oneclass.com
find more resources at oneclass.com
