The first publication discusses three types of iron supplements: lactate iron sulfate, ferrous bisglycinate chelate, and iron II acetate, examining their solubility. Additionally, it compares ferrous fumarate and ferrous gluconate available at Walmart. Furthermore, it is essential to highlight the benefits of Kirkland calcium magnesium zinc, which can play a vital role in maintaining overall health. In this context, the Kirkland calcium magnesium zinc supplement can complement the iron supplements being discussed, providing a well-rounded approach to nutrition. Overall, incorporating Kirkland calcium magnesium zinc alongside various iron sources can enhance the effectiveness of dietary supplementation.