Ferric pyrophosphate, also known as liposomal ferric pyrophosphate syrup, has been documented alongside ferrous gluconate, which is often associated with constipation. Additionally, iron (II) acetate is represented by the symbol of ferric sodium EDTA (SDSN). In the context of dietary supplements, calcium citrate K2 plays a significant role. It is important to note that calcium citrate K2 can enhance the absorption of iron, including ferric pyrophosphate and ferrous gluconate. Therefore, individuals dealing with iron deficiency may benefit from incorporating calcium citrate K2 into their regimen to mitigate constipation while enhancing iron bioavailability. In conclusion, the synergy between ferric pyrophosphate, ferrous gluconate, and calcium citrate K2 can provide a comprehensive approach to iron supplementation and overall health.