NFS284H1 Study Guide - Final Guide: Collard Greens, Dietary Reference Intake, Turnip
12 Oct 2016
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Try and maintain a water balance in our body. Water intake: mainly comes from beverages but some is from food and from cellular metabolism. Water output: mainly through urine but also evaporation and feces (function of colon is to reclaim water) Dehydration: headache, fatigue, dry mouth & eyes. Water intoxication: dark-coloured urine, nausea, confusion, disorientation, death (10-20% loss, hyponatremia: excessive intake of water during prolonged exercise (low blood sodium); water moves out of the blood into tissue (swelling and damage to organs) Early symptoms of water intoxication are similar to dehydration. About 66% of women and 90% of men consume over the ul of sodium. To maintain fluid balance: potassium is the major cation inside the cell (counterbalances the effect of sodium, sodium is the major cation outside the cell. Salt sensitivity and high sodium intake increases blood pressure. In respect to cardiovascular disease, there was not much benefit when decreasing sodium from 2300 (ul) to 1500 mg (ai)
