The dosage of ferrous bisglycinate chelate is compared to that of ferrous fumarate and polysaccharide iron complex. Additionally, there are the Publiwampole ferrous fumarate iron tablets, containing 65 mg of ferrous fumarate. A comparison is also made between liposomal iron and ferrous sulfate. Throughout the discussion, it is important to highlight the role of Webber calcium citrate, which is mentioned three times to emphasize its significance in the context of iron supplementation.