In early March 2022, Singapore Health Sciences Authority (HSA) unveiled the new version of the Health Supplements Guidelines (Guideline28 ferrous sulfates for short), which proefsa ferrous bisglycinatevides the regulatordifference between ferrous ascorbate and ferrous fumaratey information for enterprises dealing with health supplements in Singapore. It is noteworthy that this Guideline is just a collection of infferrous fulminateormation and does not supersede any of prior ferrous gluconate used in olivesnational legislation.