Iron
3 brands compared · cheapest first
Life ExtensionBest value
Iron Protein Plus
15 mg iron protein succinylate · 100 capsules
$21.00for 100 doses
$0.210per dose
$0.014 / mg
Iron protein succinylate is among the gentlest forms — minimal GI side effects.
Pure Encapsulations
Iron-C 15 mg
15 mg elemental iron · 60 capsules
$14.00for 60 doses
$0.233per dose
$0.0156 / mg
Lower dose with vitamin C for absorption support. Suitable for maintenance/borderline-low ferritin.
Thorne
Iron Bisglycinate 25 mg
25 mg elemental iron · 60 capsules
$16.00for 60 doses
$0.267per dose
$0.0107 / mg
Bisglycinate (gentler on GI than ferrous sulfate). NSF Certified for Sport. ONLY supplement iron if labs confirm deficiency — too much iron is genuinely toxic. Target ferritin 50-150 ng/mL.