In various implementations, an oxalate absorption blocking (OAB) compositionmay beadministered to improve a health of an individual. The OAB composition mayincludecalcium and/or magnesium. In some implementations, the OAB composition mayinclude one or more carbonates, probiotics, vitamins and/or other minerals. Atherapeutically effective amount of the OAB composition may be administered toreduceoxalate absorption from foods consumed by an individual. Reducing oxalateabsorptionfrom foods consumed by an individual may decrease pain, improve movement ofjoints,inhibit kidney stone formation, and/or otherwise improve an individual'shealth.