Which of the following substances is used while preparing balanced nutrient solution to keep the iron in soluble form?
Sodium Fe EDTA ( EDTA FE Na) or Na-EDTA has proven as a safe fortificant for use in populations with endemic iron deficiency. It is stable, resistant to the common inhibitors of non-haem iron absorption and improves the absorption of intrinsic iron as well as zinc.
Hence, the correct answer is option 1.