maleic
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Why not use calcium chloride to supply calcium for nutrients?
People generally do not need to use calcium tablet to supply the extra calcium. The recommended method is intake it from dietary calcium.
Calcium chloride generally used as emergency calcium supplements by intravenous injection. But the application of calcium chloride has a food usage.
So why not use calcium chloride to supply calcium for nutrients?
Because it is very salty! And its water absorption effect is very good, If direct swallowing may adhesion in the esophageal wall. And anhydrous
calcium chloride dissolved in water gives off a lot of heat, you won't want to be burn out esophageal or the stomach!
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kecskesajt
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Calcium chloride is too hygroscopic.Imagine: Somebody get a CaCl2 capsule and leave the box opened.When get back,It is a slurry.But here it is used in
pickle conserves.But it made quite a few accidents.Not bad but burning and itching,peeled of skin and so on.
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Pumukli
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Have you tasted calcium chloride solution? It has a bad (bitter) taste. Believe me. :-)
Reason number two is not so obvious, but according to a pharmacist book the chloride salt has a bad bio-availability via the oral route. Although
CaCl2 dissolves readily in water so one would expect easy uptake from stomach and intestines but this is not the case! Organic acid calcium
salts have much better absorbtion properties so they are used mostly. (Ca-lactate, Ca-gluconate).
This bad absorption capability may be similar to that of MgSO4!
MgSO4 also readily dissolves in water but if ingested gives a diarrhea to the patient (instead of Mg supply).
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aga
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Imagine the various stages of the human digestion system as a hugely complicated chain of chemical reactions (which it is).
Now imagine stuffing bits of car tyre into that system because you would like the Sulphur to be absorbed, and rubber contains sulphur ...
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unionised
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Would anyone like to speculate on what happens to calcium gluconate when it reaches the HCl in the stomach? Hint, HCl is a much stronger acid than
gluconic.
Anyway, CaCl2 is too hygroscopic to use- it's difficult to measure out an exact dose because it's almost bound to contain (a variable amount of)
water. The gluconate is a stable crystalline powder. Calcium chloride (as has been pointed out) tastes filthy.
Sodium sulphate, like magnesium sulphate, acts as a laxative- essentially because the sulphate ion isn't absorbed.
Aga's analogy isn't great; the calcium is pretty much "free" calcium ions once the stuff is in solution (there are slight effects from complexation)
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Pumukli
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Yes, stomach pH can be as low as 2. But after the stomach, in the doudenum (and further on) the pH is actually basic!
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diggafromdover
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Calcium Citrate provides calcium in a form accessible to the human digestive system.
Enjoying second childhood with REAL chemistry set.
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