Nutrition Final

Nutrition Final - Water most indispensable nutrient makes...

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Unformatted text preview: Water most indispensable nutrient makes up 60% of a person weight transport vehicle for all the nutrients can act as a lubricant and a cushion for the joints hard water: high in calcium and magnesium soft water: high in sodium interstitial fluid: portion of exracellular fluid that surround cells o 80% of extracellular fluid functions of body water o 1. Medium for all cellular metabolic reactions o 2. helps maintain proper acid/base balance o 3. transport medium for gasses, nutrients, metabolic waste o 4. has the ability to maintain body temp o 5. fills cells and spaces between them o 6. lubricant and shock absorber o 7. participates in energy formation we do not get any energy from water water input o fluid ingestion (50%) o food ingestion (40%) o metabolic water (5%) water output o urine o perspiration o feces o expired air dehyrdration: the loss of bodily water as a percentage of body weight 8 cups a day (recommended) is more than anyone needs most fruit is 80-95% water Minerals salts dissolve in water, they seperate into single, electrically charged particles known as ions electrolytes o ions with electrical charges o help keep fluids in their proper compartments and buffer these fluids, permitting all life processes to take place o sodium: extracellular cation o potassium: intracellular cation o chloride: exracellular anion o functions of electrolytes 1. Acid/base balance 2. Water/fluid balance 3. Nerve transmission 4. Muscle contraction mineral composition of the body 96% of body weight is comprised of four elements o oxygen, carbon, hydrogen, and nitrogen o other 4%=minerals Macrominerals a mineral vital to health required in the diet in amounts greater than 100mg daily SODIUM toxicity problems o hypertension direct relationship between sodium and blood pressure the more salt a person eats, the higher the blood pressures goes up DASH diet: dietary approach to stop hypertension Often achieves a lower blood pressure than restriction of sodium alone o heart disease o stroke o kidney failure o osteoporosis o some cancers high in processed foods (75%) 10% comes naturally in foods 15% used in table/cooking salt people need 200 mg, consume 4,000-6000 mg. recommended is 2400 (now 1500) 75% of sodium POTASSIUM found inside the cell performs the same functions of sodium but on the inside of the cell high in naturally, unprocessed foods try to consume at least 4,700 mg daily low potassium intake on its own raises blood pressure (prevents and corrects hypertension) sources: spinach, banana, mushrooms, broccoli, milk CHLORIDE major extracellular anion majority of chloride in the diet comes from salt NACL it is very important in maintaing stomach acidity (hydrochloric acid) acid that comes out when you throw up a lot leads to imbalance of PH in the body blood PH (7.35-7.45) (neutral PH)blood PH (7....
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Nutrition Final - Water most indispensable nutrient makes...

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