From 2004 this pharmacokinetic study examined Fe absorption of micronized, dispersible ferric pyrophosphate with that of ferrous sulfate in an infant cereal and a yogurt drink. While absorption was not different between the two forms, the bioavailability of SunActive was high indicating it may be better for iron fortification.
References:
Fidler, M. C., Walczyk, T., Davidsson, L., Zeder, C., Sakaguchi, N., Juneja, L. R., & Hurrell, R. F. (2004). A micronised, dispersible ferric pyrophosphate with high relative bioavailability in man. The British journal of nutrition, 91(1), 107–112. https://doi.org/10.1079/bjn20041018
