Ferrous ascorbate is used for the treatment and prevention of iron deficiency anemia, ferrous ascorbate is used when the amount of iron taken from the diet is not enough for the body . It is also used for the treatment of anemia due to kidney failure. It is only used to treat iron deficiency-related hemoglobin disorders.
Folic acid is used to: treat or prevent folate deficiency anaemia.
Zinc sulfate is used medically as a dietary supplement. Specifically it is used to treat zinc deficiency