Thorne Research Iron Bisglycinate
Brand: Thorne Research · Form: CAPSULE [E0159]
Our assessment
Our assessment: The evidence shows that iron bisglycinate is a well-absorbed form of iron, but data on the specific Thorne Research brand is limited. For general iron supplementation, the RDA for adult women is 18 mg daily, and for men it is 8 mg daily [NIH ODS]. We cannot confirm the exact dosage per capsule from the provided data, as this information is missing from your input. You should always check the Supplement Facts panel on the bottle for the precise amount of elemental iron per serving.
How it works
Think of iron as a critical component of hemoglobin, the protein in red blood cells that carries oxygen from your lungs to the rest of your body. Without enough iron, your body can't produce enough healthy oxygen-carrying red blood cells [NIH ODS]. Iron bisglycinate is a chelated form, meaning the iron is bonded to the amino acid glycine, which may help reduce common gastrointestinal side effects like constipation and nausea compared to other forms like ferrous sulfate [NIH ODS].
Safety profile
Data not available for specific adverse event reports for this brand from the FDA data provided. However, general risks of iron supplementation include nausea, constipation, and stomach pain, especially at higher doses [NIH ODS]. Iron overdose is a leading cause of poisoning in children; keep all iron supplements out of reach of children [NIH ODS]. Do not take iron unless you have confirmed low iron levels through a blood test, as excess iron can be harmful to your liver and heart [NIH ODS].
Our recommendation
Our recommendation: Do not start iron supplementation without a blood test showing iron deficiency. If you are deficient, follow your healthcare provider's dosing instructions. For general prevention, the RDA is 18 mg for adult women and 8 mg for adult men [NIH ODS]. The provided data does not specify the dose in this Thorne product, so you must verify the label. Choose a dose that matches your RDA or your doctor's recommendation, and take it on an empty stomach for best absorption, though with food if stomach upset occurs [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Thorne Research |
|---|---|
| Serving Size | |
| Contents | 60.0 Vegetarian Capsule(s) |
| Market Status | Off Market |
How to Read This Label
Supplement labels contain several key sections regulated by the FDA:
- Serving Size — The recommended amount per dose. Always check this — some products require multiple capsules per serving.
- Amount Per Serving — Shows the quantity of each nutrient in the product, typically in IU (International Units), mg (milligrams), or mcg (micrograms).
- % Daily Value (%DV) — Indicates how much a nutrient in a serving contributes to a daily diet. 5% DV or less is low; 20% DV or more is high.
- Other Ingredients — Lists inactive ingredients like fillers, binders, and capsule materials (e.g., gelatin, cellulose, magnesium stearate).
- Suggested Use — The manufacturer's recommended directions for taking the supplement, including timing and dosage.
Source: FDA Dietary Supplement Labeling Guide