CALCIUM CARBONATE
"Salt Plus has less sodium. Diets low in sodium may reduce the risk of high Blood pressure."
"It is recommended to consume less than 2300mg of sodium on a 2000kcal diet
(US FDA - Label claim) & 2300mg sodium is approximately present in 1stp or 6g of
Table Salt"
US FDA: A food labeling guide- Appendix C, Reference 21 CFR 101.74