NUTR 2050 Lecture 7: Nutrition Lecture 7
7 Feb 2017
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Document Summary
Gestational age: assessed from date of conception: average pregnancy is 38 weeks. Menstrual age: assessed from onset of last menstrual period (lmp: average pregnancy is 40 weeks. Increased oxidation and free radical formation results from: increased energy production in mitochondria, insulin resistance during pregnancy. Adequate antioxidant nutrients (vitamin e, c, beta-carotene) guard against free radical damage. Iron (almost twice as much), zinc, iodine, selenium, copper, manganese, chromium, molybdenum, sodium: no increases in: Trimester 2: increase kcal by 340. Trimester 3: increase kcal by 452. Essentially, only 2-3 more servings from ewcfg need to be consumed to meet this. Health canada cautions against inadequate intakes of folate, calcium, iron and omega-3 fatty acids. Need for water: met by increased levels of thirst, average consumption during pregnancy (9 cups of fluid per day, recommend water, diluted fruit juice, and other unsweetened beverages.
