Strontium Uptake in Rats on Alginate-Supplemented Diet

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Science  29 Apr 1966:
Vol. 152, Issue 3722, pp. 655-656
DOI: 10.1126/science.152.3722.655


Rats were fed a basic diet supplemented with sodium alginate and with tracer amounts of strontium-85 and calcium-45. Absorption of strontium was always inhibited by the alginate to a greater extent than absorption of calcium. Discrimination against strontium was greatest in alginate containing a high proportion of guluronic acid.