Calcium binding by dietary fibre.
Dietary fibre from plants low in phytate bound calcium in proportion to its uronic-acid content. This binding by the non-cellulosic fraction of fibre will reduce the availability of calcium for small-intestinal absorption, but the colonic microbial digestion of uronic acids will liberate the calcium. Thus the ability to maintain calcium balance on high-fibre diets may depend on the adaptive capacity of the colon for calcium absorption.
D001665:Binding Sites; D002118:Calcium / Q000378:metabolism*; D002482:Cellulose / Q000378:metabolism*; D003106:Colon / Q000378:metabolism; D004043:Dietary Fiber / Q000032:analysis / Q000378:metabolism*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007408:Intestinal Absorption; D014574:Uronic Acids / Q000032:analysis / Q000378:metabolism; D014675:Vegetables / Q000032:analysis
D004043:Dietary Fiber; D014574:Uronic Acids; D002482:Cellulose; D002118:Calcium