HLSC 1F90 Study Guide - Final Guide: Falling Slowly, Infant Mortality, Environmental Health

• School: Brock University
• Department: Health Sciences
• Course: HLSC 1F90
• Professor: Brent Faught

Document Summary

Poor diet/inactivity #2 risk factor of death. Atwater values: 4kcal/g for carb and protein, 9 kcal/g for lipids, 7 kcal/g for alcohol. Vitamins: fat (a, d, e, k) and water (b, c) soluble. Minerals: major (>100 mg/day; calcium, sodium, potassium) and trace (<100mg/day; iron, zinc, iodine) Introduced in 1942, latest version released in 2007. Dietary reference intakes (dri) - define the amount of energy, nutrients and other dietary components. Estimated average requirements (ear) - estimate of how much is needed in the diet (50% pop) Recommended dietary allowance (rda) same as above but cover 98% population. Estimated energy requirement - average dietary energy intake that is predicted to maintain energy balance in healthy reference adults. Acceptable macroonutrient distribution ranges- carbs 45-65%, fat 20-35%, protein 10-35. Adequate intakes insufficient scientific evidence, so best guess approach. Tolerable upper intake level max amount of nutrient that appears to be safe, toxicity.