S-26 Progress GOLD® provide a large percentage of the key nutrients for toddlers. S-26 Progress GOLD® is fortified with an appropriate level of iron to reduce the risk of anemia, and is enriched with preformed arachionic acid (AA) and docosahexaenoic acid (DHA), which play an important role in brain and vision development. ensure adequate intake of at-risk nutrients, including iron, vitamin D, and zinc.is also fortified with nucleotides, which play a role in the growth and proper functioning of the intestines.