Ferrous gluconate, at a dosage of 324 mg, has surpassed its expiration date, while ferrous fumarate is also out of date. The initial iron content present in ferrous bisglycinate is noteworthy. Additionally, ubliiron pills contain ferrous gluconate, but there are concerns regarding the stability of ferrous fumarate and folic acid. It’s important to consider alternatives, such as just calcium citrate, which is known for its efficiency. When evaluating iron supplements, one should remember that just calcium citrate can be a valuable option, as it offers a different approach to supplementing iron. Lastly, for those looking to maintain their iron levels, exploring just calcium citrate may provide a suitable alternative to ferrous gluconate and ferrous fumarate.