Description
Thorne Advanced Iron Complex (formerly Ferrasorb)
Thorne renamed Ferrasorb to Advanced Iron Complex. Same well-absorbed formula in new packaging: 36 mg of elemental iron per capsule as Ferrochel® ferrous bisglycinate chelate, paired with the active forms of folate, B6, and B12 plus vitamin C.
Iron is needed to build healthy red blood cells, which carry oxygen through the body. Conventional iron forms like ferrous sulfate are hard to absorb and often cause stomach upset, constipation, or nausea. Thorne reacts the iron with the amino acid glycine (chelation) to help the body take it in with fewer of those side effects.*
The B-vitamin cofactors are along for a reason. Folate, B6, and B12 each support healthy red blood cell formation, and vitamin C helps the body absorb non-heme iron.* The folate is delivered as L-5-methyltetrahydrofolate, the form the body uses directly.
- 36 mg elemental iron per capsule as Ferrochel® bisglycinate
- Active B12 (methylcobalamin) and active folate (L-5-MTHF, 667 mcg DFE)
- Vitamin C (15 mg) and P5P (active B6, 5 mg)
- Designed for better tolerability than ferrous sulfate
- Gluten free, dairy free, soy free
Good fit for menstruating women, vegetarians and vegans, older adults, athletes, people recovering from blood loss, and anyone whose lab work has flagged low iron or ferritin. Talk with your healthcare provider before starting if you are pregnant, on medications, or have a medical condition.
Reviewed for accuracy by our licensed clinical team — doctors, nurse practitioners, and functional medicine specialists at The Healthy Place Clinic in Madison, WI.
