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Exam short answer + 55 multiple choice Midterm exam Essay 1000 words – includes references ( Barre et al. 2007) given body of essay but not including reference citations given at the end of the paper-also spelling counts as part of 5 marks for presentation section of marks 18.5-24.9
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Input on course- Slow down Aa displacement
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Lecture 8a MINERALS-I MAJOR MINERALS 1 November 2010
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MINERALS-SOME GENERAL COMMENTS SINGLE ATOMS CAN BE CHARGED OR UNCHARGED IN THE BODY MAJOR -ARE FOUND IN THE BODY IN EXCESS OF 5 GRAMS -ELECTROLYTES AND MINERALS MINOR- ARE FOUND IN THE BODY IN AMOUNTS OF LESS THAN 5 GRAMS
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MINERALS- GENERAL COMMENTS CONTINUED MOST ESSENTIAL- WE CANNOT MAKE THEM -SOME DEFICIENCIES HAVE NOT BEEN ESTABLISHED FOR SOME MINOR MINERALS MAKING IT UNCLEAR WHETHER THEY ARE NEEDED IN THE DIET
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WHAT ARE THE MAJOR MINERALS ? ELECTROLYTES IN PART RESPONSIBLE FOR FLUID BALANCE IN BODY SODIUM, POTASSIUM AND CHLORIDE MAJOR MINERALS CALCIUM, PHOSPHOROUS, MAGNESIUM AND SULPHUR
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Water functions/sources/deficiencies/toxicities -carries nutrients and wasteproducts -maintains the structure of large molecules e.g. proteins and glycogen -participates in chemical reactions -serves as solvent for small nutrients -temperature-regulation -blood volume-regulation water balance required for all this above sources-foods, drinks, water deficiencies- loss of above functions toxicities-none-unless water balance failure
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SODIUM FUNCTION-fluid and electrolyte balance, pH control, muscle function, nerve impulse transmission SOURCES-processed foods DEFICIENCIES- rare-except with diarrhea, vomiting and kidney disorders TOXICITIES – rare(kidney disposes of it)- edema and acute high blood pressure
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POTASSIUM FUNCTION-fluid and electrolyte balance, pH control, muscle function, nerve impulse transmission SOURCES-fruits, vegetables, whole grains DEFICIENCIES- muscle weakness, paralysis TOXICITIES-supplements-muscle weakness, vomiting
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CHLORIDE FUNCTION-fluid and electrolyte balance, part of stomach acid SOURCES-same as sodium DEFICIENCIES-same as sodium TOXICITIES-acute hypertension
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CALCIUM FUNCTION-bone and teeth formation, blood clotting, nerve transmission, muscle function, blood pressure SOURCES –dairy, fortified orange juice, green leafy vegetables, small fish with bones DEFICIENCIES-children-impaired growth, adults-osteoporosis TOXICITIES-kidney stones, impaired iron absorption
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PHOSPHOROUS FUNCTION-bone and teeth formation, pH control, regulation of coenzyme function SOURCES-all animal products, bread and ready to eat cereal DEFICIENCIES-rare- weakness and bone pain TOXICITIES- low blood calcium
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MAGNESIUM FUNCTION- bone formation, nerve transmission, protein and carbohydrate metabolism (enzyme activity) SOURCES-green leafy vegetables, nuts, whole grains, seafood, chocolate DEFICIENCIES-weakness, confusion, growth failure in children TOXICITIES- rare- nausea, vomiting
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SULPHUR FUNCTION-protein structure, component of biotin, thiamin and insulin SOURCES-all protein foods DEFICIENCIES-unknown TOXICITIES-unknown in humans
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MAJOR MINERALS IN HEALTH AND DISEASE
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DIGESTION, ABSORPTION AND TRANSPORT OF MAJOR MINERALS PART OF STORY ON CONNECTION OF MINERAL SUPPLEMENTATION TO HEALTH
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MAJOR MINERALS- DIGESTION, ABSORPTION AND TRANSPORT CONTINUED DIGESTION – NONE- MINERALS IN = MINERALS OUT ABSORPTION-ACTIVE TRANSPORT
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MAJOR MINERALS- DIGESTION, ABSORPTION AND TRANSPORT CONTINUED TRANSPORT-FREE OR BOUND FREE- EXAMPLES SODIUM AND ALL OTHER MAJOR MINERALS (EXCEPT SULPHUR) BOUND- SODIUM CHLORIDE -POTASSIUM CHLORIDE -SULPHUR-INSULIN
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MAJOR MINERAL SUPPLEMENTS REQUIRED IF: A)INADEQUATE DIETARY SUPPLY OF MAJOR MINERALS RELATIVE TO NEED (PREVENTION OR SLOWING OF DISEASE) B) IF IN DISEASE IN GENERAL A MONITORING OF MAJOR MINERALS SHOWS REQUIREMENT.
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FUNCTIONAL FOODS USE OF FUNCTIONAL FOODS TO SUPPLEMENT MAJOR MINERALS EXAMPLE OF FUNCTIONAL FOOD- CALCIUM- FORTIFIED ORANGE JUICE
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FUNCTIONAL FOODS ONLY A FEW FUNCTIONAL FOODS WORK IN THE PREVENTION AND SLOWING OF DISEASE
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CYSTIC FIBROSIS SOMETIMES LOW SODIUM DUE TO SWEATING- SUPPLEMENT REQUIRED FOR INFANTS DUE TO LOW SODIUM IN FORMULA, BREAST MILK AND SOME INFANT FOOD
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BURNS- FLUID LOSS THROUGH SKIN- -ELECTROLYTES -CALCIUM, PHOSPHORUS AND MAGNESIUM EATING PROBLEM- MAY NOT FEEL LIKE EATING THEREFORE NEED INTRAVENOUS OR TUBE FEEDING
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OSTEOPOROSIS PREVENTION- CALCIUM BUILDUP SOURCES CALCIUM CITRATE CALCIUM CARBONATE CAUTION-CALCIUM PHOSPHORUS BALANCE
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OSTEOARTHRITIS CALCIUM SUPPLEMENT IF NOT SUFFICIENT IN DIET TO SLOW PROCESS
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RHEUMATOID ARTHRITIS CALCIUM SUPPLEMENT IF NOT SUFFICIENT CALCIUM IN DIET TO SLOW PROCESS
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IN ADVANCED OSTEOPOROSIS, OSTEOARTHRITIS, AND RHEUMATOID ARTHRITIS GET DECREASED CALCIUM ABSORPTION
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PREGNANCY ADDITIONAL 2000 CALCIUM MG/DAY DECREASED BLOOD PRESSURE BETTER CHANCE OF SUCCESSFUL PREGNANCY
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DECREASING BLOOD PRESSURE POTASSIUM, CALCIUM AND MAGNESIUM SUPPLEMENTATION -EACH INDIVIDUALLY LOWER BLOOD PRESSURE LOWER BLOOD PRESSURE- LOWER RISK OF ATHEROSCLEROSIS
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STROKE POTASSIUM SUPPLEMENTATION LOWER DEATHS DUE TO STROKE APPARENTLY NOT BLOOD PRESSURE RELATED
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POLYCYSTIC KIDNEY DISEASE SOME KIDNEY DISEASES- EG POLYCYSTIC KIDNEY DISEASE- LOSE TOO MUCH SODIUM GIVING A DROP IN BLOOD PRESSURE
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SULPHUR IS OFF THE BOOKS AS A SUPPLEMENT- WHY?
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WHATS NEW IN MAJOR MINERAL RESEARCH IN HEALTH AND DISEASE ? Drs. Whiting and Wood, Nutr. Rev.55:1-9 MAGNESIUM LOSSES a)Dietary calcium/magnesium milligram ratio of > 5 GET magnesium deficiency-lower magnesium absorption b) urinary magnesium up with 1000 milligram dietary supplement of calcium (Dr. Whiting)
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WHATS NEW IN MAJOR MINERAL RESEARCH IN HEALTH AND DISEASE ? CONTINUED TWO WAYS OF GETTING REDUCED BODY MAGNESIUM DUE TO INCREASED CALCIUM INTAKE 1) REDUCED ABSORPTION 2) INCREASED URINARY LOSS
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WHATS NEW IN MAJOR MINERAL RESEARCH IN HEALTH AND DISEASE ? CONTINUED CANADIAN JOURNAL OF CARDIOLOGY JOFFRES ET AL 2007 DROPPING SODIUM ADDITIVES BY 1840 MG/DAY WOULD DECREASE SYSTOLIC AND DIASTOLIC BPs
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