Thorne Advanced Iron Complex (formerly Ferrasorb) — 60 Capsules
Thorne Advanced Iron Complex (formerly Ferrasorb), 60 Capsules
Thorne renamed Ferrasorb to Advanced Iron Complex. The formula inside is the same, just in new packaging. Each capsule gives you 36 mg of elemental iron as Ferrochel® ferrous bisglycinate chelate, paired with the active forms of folate, vitamin B6, and vitamin B12, plus vitamin C. If you searched for Ferrasorb and landed here, you are in the right place.
Why the chelated iron form matters
Iron is part of how the body builds red blood cells, which carry oxygen where it needs to go. The catch with iron is the form. Common types like ferrous sulfate are not absorbed all that well, and a lot of people find them rough on the stomach. Thorne reacts the iron with the amino acid glycine, a process called chelation, so the body can take it in with fewer of those gastrointestinal complaints.* It is not a magic fix, and some people are still sensitive to any iron, but the bisglycinate form tends to sit better.
The B vitamins and vitamin C are there for a reason
This is not iron on its own. The supporting nutrients each play a role in how your body uses iron and makes red blood cells.*
- Vitamin C (15 mg) helps the body absorb non-heme iron, which is the kind that comes from supplements and plants.*
- Vitamin B6 as P5P (5 mg) is the active form, involved in red blood cell production.*
- Folate as L-5-MTHF (667 mcg DFE) is the body-ready form of folate and supports healthy red blood cell formation.*
- Vitamin B12 as methylcobalamin (300 mcg) is the active form and works alongside folate.*
Who tends to reach for an iron supplement
Iron needs run higher for some people than others. Menstruating women, vegetarians and vegans, older adults, and athletes often pay closer attention to their iron status, as do people recovering from blood loss. The honest answer is that iron is not something to guess at. A simple lab panel for iron and ferritin tells you where you actually stand, and your healthcare provider can help you read it. Talk with them before starting if you are pregnant, taking medications, or managing a health condition.
What is in the bottle
You get 60 capsules. Thorne uses a serving of 1 capsule, taken one to three times daily depending on what your practitioner suggests. The product is third-party tested and made gluten free, dairy free, and soy free. Not sure iron is the right call for you? Our team is happy to talk it through before you buy.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Reviewed for accuracy by our licensed clinical team -- doctors, nurse practitioners, and functional medicine specialists at The Healthy Place Clinic in Madison, WI.
Questions? Talk to our team before you buy.