| abstract |
A sodium absorption inhibitor, a potassium absorption inhibitor, and a phosphorus absorption inhibitor, each of which contains as an active ingredient, a metal salt of a cross-linked cellulose derivative represented by the following general formula (I), and a preventive agent, a therapeutic agent and a food for diseases caused by overconsumption of table salt, potassium and phosphorus or diseases which require restriction of intake of table salt, potassium, and phosphorus are provided. With the use of them, overconsumed table salt, potassium, and phosphorus can be actively and safely excreted outside the body. R-O-A (I) (In the formula (I), R represents a cross-linked cellulose residue, and A represents a functional group a having a cation exchange ability.) |