Chapter 8 (Section B) Flashcards
Minerals make up what percentage of tissue?
4 to 6
Where are minerals found?
Minerals are found as components of tissue like muscle and bone, as well as essential pieces of cellular metabolic processes and immune responses
In excessive quantities, inorganic minerals are treated as what? Why?
toxins, because they cannot be easily broken down in the body
Examples of organic minerals:
co2, carbonates, and carbides
Examples of inorganic minerals:
salts and metals
Daily mineral requirements are directly correlated to which three things?
activity levels, body size and
lean body mass.
The adult body contains approximately ________ grams of calcium, 99 percent of which is present
in bones as a _________ ___________ molecule. Calcium also occurs in the body in its _________ _________
state and as _____________ _______________.
1,200; calcium phosphate; free ionic; calcium carbonate
Mineralization of bone requires a
positive calcium balance
Calcium (in MG) DRI for 0-13; 13-49; 50 and up:
200-1300; 1000; 1200
Inadequate calcium intake results in
4
muscle cramping, reduced energy levels, Rickets and stunted growth
Hypocalcemia is a result of the inadequacies of:
(3)
the calcium-regulating hormone calcitonin, parathyroid hormone and vitamin D
The tolerable upper-intake level (UL) for calcium is _____ mg per day for all ages.
2500
Excess calcium intake over the short term may cause
(2)
constipation or development of kidney stones
Higher intake of calcium can also interfere with the absorption of
iron, zinc, magnesium, and other essential minerals.
Studies have shown that excess calcium
intake over the long term can potentially lead to
(3)
bone fractures, chronic gastrointestinal
distress, and cardiovascular disease