Ferrasorb
by Thorne Research · capsule · 60 vegetarian capsules
- Off the market since March 2018 (NIH)
- UPC 6 93749 75003 1
- DSLD label 74459
- Serving 1 capsule
Ferrasorb by Thorne Research lists 5 ingredients, 5 with an amount per serving of 1 capsule, such as 15 mg of vitamin C, 5 mg of vitamin B6, 400 mcg of folate and 300 mcg of vitamin B12. Its current label entered the NIH Dietary Supplement Label Database on June 23, 2017.
What is in Ferrasorb?
Each row as the label prints it, per serving of 1 capsule. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Vitamin Cas Ascorbic Acid | 15 mg | 25% | 93% of 18,583 products listing vitamin C give more (median 100 mg). Per day at the most servings: 45 mg. |
| Vitamin B6as Pyridoxal 5-PhosphateVitamin B6 (Form: as Pyridoxal 5'-Phosphate) | 5 mg | 250% | 51% of 15,277 products listing vitamin B6 give more (median 6 mg). Per day at the most servings: 15 mg. |
| Folateas L-5-MethyltetrahydrofolateFolate (Form: as L-5-Methyltetrahydrofolate (Form: from L-5-Methyltetrahydrofolic Acid, Glucosamine Salt)) | 400 mcg | 100% | 24% of 7,022 products listing folate give more (median 400 mcg). Per day at the most servings: 1,200 mcg. |
| Vitamin B12as MethylcobalaminVitamin B12 (Form: as Methylcobalamin) | 300 mcg | 5,000% | Higher than 80% of 14,425 products listing vitamin B12 (median 36 mcg). Per day at the most servings: 900 mcg. |
| Ironas FerrochelIron (Form: as Ferrochel Ferrous Bisglycinate Chelate) | 36 mg | 200% | Higher than 96% of 6,910 products listing iron (median 5 mg). Per day at the most servings: 108 mg. 2.4 times the adult UL a day. |
Source: NIH ODS Dietary Supplement Label Database, label 74459 (entered June 23, 2017), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.
Is that a lot?
The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:
- 93% of the 18,583 products that print an amount of vitamin C list more than its 15 mg of vitamin C (median 100 mg).
- At 3 servings a day, the most its directions give, the label lists 108 mg of iron, 2.4 times the adult Tolerable Upper Intake Level.
The NIH database records 1 to 3 servings a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.
The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.
Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.
Which products have the closest formulas?
6 products list the very same ingredients; the nearest amounts come first.
- FerrasorbThorne same ingredients
- ErythroQOLOncoQOL · off the market same ingredients
- ErythroQOLThorne Research · off the market same ingredients
- Iron Complex 29 mgVitaCeutical Labs same ingredients
- T.R.I.-Iron ComplexAnabolic Laboratories · off the market same ingredients
- Iron Complex 29 mgVitamer Laboratories same ingredients
Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.
What does the label say about taking it?
Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.
- Directions
- Suggested Use: Take 1 capsule one to three times daily or as recommended by your health-care practitioner.
- Warnings
- Tamper Evident: Use only if bottle is sealed.
- If pregnant, consult your health-care practitioner before using this product.
- Warning: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under six. Keep this product out of reach of children. In case of accidental overdose, call a doctor or a poison control center immediately.
- Storage
- Store tightly sealed in a cool, dry place.
Source: label statements in DSLD label 74459.
What else is on the label?
Other ingredients: Hypromellose, Microcrystalline Cellulose, Leucine, Silicon Dioxide.
How many labels does Ferrasorb have?
5 labels are on file under this name since December 21, 2012: other sizes, label designs and reformulations. The current one leads this page.
- Label 74459 (current) Entered June 23, 2017 · off the market March 13, 2018 · 60 vegetarian capsules · UPC 6 93749 75003 1
- Label 50595 Entered September 25, 2015 · off the market December 2, 2016 · 60 vegetarian capsules · UPC 6 93749 75003 1
- Label 35518 Entered July 25, 2014 · off the market March 26, 2015 · 60 vegetarian capsules · UPC 6 93749 75003 1
- Label 28373 Entered December 24, 2013 · off the market June 26, 2014 · 60 vegetarian capsules · UPC 6 93749 75003 1
- Label 16073 Entered December 21, 2012 · off the market November 26, 2013 · 60 vegetarian capsules · UPC 6 93749 75003 1
DSLD also links this label to: Ferrasorb (image difference, same product), Ferrasorb (image difference, same product), Ferrasorb (image difference, same product), Ferrasorb (image difference, same product), Ferrasorb (image difference, same product).
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Thorne Research, Inc. (manufacturer), Dover, Idaho. All Thorne Research products.