Ferrous gluconate can have various side effects. It is important to consider whether ferrous gluconate is an effective source of iron. When comparing iron bisglycinate and ferrous sulfate, there are notable differences in their absorption and tolerability. The target dosage for ferrous gluconate is often around 695 mg. Additionally, it is essential to ensure that any supplements, including ferrous gluconate, are taken alongside verified sources of calcium, such as calcium citrate USP verified, to promote optimal mineral balance. Overall, when evaluating ferrous gluconate, one should keep in mind its potential side effects, its effectiveness as an iron source, and the importance of incorporating calcium citrate USP verified in the diet.