3.3.2%20major%20minerals%20-%20r

3.3.2%20major%20minerals%20-%20r - 3.3.2 Major Minerals...

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3.3.2 Major Minerals
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Minerals : • inorganic ions • not altered during digestion • obtained from soil by plants and then into the food chain General characteristics:
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General Functions: structural function • enzyme cofactors in energy metabolism • electrolytes involved in fluid balance Minerals :
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Mineral Classification Major minerals calcium phosphorus potassium sulfur sodium chloride magnesium Trace minerals iron zinc copper manganese iodine selenium molybdenum chromium fluoride cobalt
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Calcium : Best dietary sources -dark green vegetables -dairy products -tofu –fortified cereals -fortified orange juice Note: not necessarily calcium content of food but bioavailability that is important
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Calcium : most abundant mineral in body • diversity of function bone matrix nerve function blood clotting muscle contraction cellular metabolism
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Good bone health promoted by • diet sufficient in calcium, vitamin D and phosphorus • regular weight bearing activity • maintaining healthy body weight Bone Health
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Osteoporosis Fig 1, p545
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3.3.2%20major%20minerals%20-%20r - 3.3.2 Major Minerals...

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