Oral Iron Dosing Intensity (Low-Dose Definition)
“Low-dose” oral iron regimens are commonly defined in terms of elemental iron (not the compound/tablet mass), with daily regimens in the 30–60 mg elemental iron/day range described in guidance for oral iron supplementation. [1]
Dose Interpretation for “72 mg Ferrous Bisglycinate”
Whether “72 mg ferrous bisglycinate taken twice daily” is low-dose depends on the amount of elemental iron provided per dose on the product label. [1]
When the Regimen Is Likely Not Low-Dose
If 72 mg is elemental iron per capsule/tablet, then 72 mg twice daily = 144 mg elemental iron/day, which is above the commonly cited “low-dose” daily range (30–60 mg elemental iron/day). [1]
When the Regimen Could Be Low-Dose
If 72 mg is the mass of ferrous bisglycinate compound and the label reports a lower elemental iron content per capsule/tablet, then the regimen may fall within the 30–60 mg elemental iron/day range and could be considered low-dose. [1]
Practical Label Check
The product facts should be checked for “elemental iron” (mg) per capsule/tablet, followed by calculation of total daily elemental iron dose. [1]