Minerals - Minerals

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LR/CC/FNB UNIT 1 :Food Components Topic 6 : Minerals
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LR/CC/FNB MINERAL DAILY BODY calcium 0.9g 1kg phosphorus 1.5g 780g potassium 3.2g 140g sodium 3.4g 140g chloride 5.2g 95g magnesium 0.3g 19g iron 14mg 4.2g zinc 11mg 2.3g fluoride 1.8mg 2.6g copper 1.6mg 72mg selenium 0.06mg 15mg iodine 0.24mg 13mg manganese 5mg 12mg cobalt 0.3mg 1.5mg
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LR/CC/FNB 1: Calcium L Bony skeleton L crystals of calcium phosphate provide rigidity L Major signalling mechanism inside cells L Sources; dairy products, fish, tofu L But, impaired absorption by Ca 2+ binding to; L phosphates in milk L phytic acid in grain husks L oxalic acids in spinach
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LR/CC/FNB 2: Calcium deficiency L Deficiency, Osteoporosis F Reduction in bone density L Cumulative problem L Type I Osteoporosis L loss of trabecular bone L Postmenopausal, ♀ 6 x ♂ L Type II Osteoporosis L L Old age related, ♀ 2 x ♂
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LR/CC/FNB
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LR/CC/FNB
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LR/CC/FNB
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LR/CC/FNB Consequences of Osteoporosis L Liable to fractures L L limitation on mobility L Compression of vertebrae L reduction in stature L pain from trapped nerves
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LR/CC/FNB 3: Phosphorus L Major store in bones with calcium (85%) L Important role in energy metabolism L Found in membrane lipids L Abundant in most foods L Deficiency only known in starvation
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LR/CC/FNB Dietary Sources of Calcium & Phosphorus
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LR/CC/FNB 4: Magnesium L Used to strengthen bone mineral crystals L Essential cofactor for energy metabolism L Available in most foods L Deficiency rare
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LR/CC/FNB 5: Sodium, Potassium, Chloride L The Electrolytes L Essential to determine osmotic balance L Essential for water absorption L Essential for nervous conduction
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6: Salt Sources L Food Sources? L
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Minerals - Minerals

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