Daily Oral Iron Supplementation for Replenishment of Depleted Iron in Adults

Inclusion Criteria: * Personally signed and dated Informed Consent Form. * Male or female, aged 18-50 years (inclusive) at the time of signing the Informed Consent Form. * Iron deficiency as defined by a hemoglobin value 100-130 g/L (females) and 110-140 g/L (males) and a serum ferritin level \<30 µg/L (with C-reactive protein level \<10 mg/L). * Generally healthy individual with no known significant health problems as judged by the Investigator (based on the screening questionnaire responses, medical history, the results of clinical laboratory tests performed at screening, and the results of examination of vital signs). * Body mass index ≤27 kg/m2. * Ability to understand and willingness to comply with all protocol required visits, assessments, and interventions. Exclusion Criteria: * Occult gastrointestinal bleeding (as determined by the fecal occult blood test). * Pronounced symptoms accompanying anemia (i. e., pronounced fatigue, dizziness, shortness of breath). * Hemochromatosis or other iron-loading disorders. * Known hemoglobinopathy (e. g., thalassemia). * Any active or unstable concurrent medical condition (e. g., cancer, renal dysfunction, liver dysfunction). * Presence of an inflammatory and/or autoimmune disorder (e. g., inflammatory bowel disease, systemic lupus erythematosus, rheumatoid arthritis, celiac disease). * Partial or total gastrectomy or any other surgical procedure bypassing the duodenum. * Known HIV, HBV, or HCV infection. * Any active chronic or …