Thorne Research Iron Bisglycinate
Brand: Thorne Research · Form: CAPSULE [E0159]
Our assessment
The evidence shows that iron bisglycinate is a well-absorbed form of iron that is generally gentle on the stomach. For you, this supplement is most useful if you have been diagnosed with iron deficiency or have a lab-confirmed need for additional iron. Data not available on the specific dosage or strength of this Thorne Research product.
How it works
Iron bisglycinate is a chelated form of iron, meaning the mineral is bound to the amino acid glycine. This structure allows the iron to be transported directly into your intestinal cells without competing with other minerals, which can reduce the digestive side effects commonly seen with standard iron salts. Its primary role is to support red blood cell production and oxygen transport throughout your body [NIH ODS].
Safety profile
Data not available on the number of adverse event reports specifically for this product from FDA data. General risks of iron supplementation include gastrointestinal discomfort, constipation, and nausea, especially if taken on an empty stomach. Excess iron can be toxic, so you should never exceed the recommended intake without medical supervision [NIH ODS].
Our recommendation
Start by having your ferritin and hemoglobin levels tested to confirm a true deficiency. If supplementation is appropriate, take this iron bisglycinate with a small amount of vitamin C (like a glass of orange juice) to enhance absorption, but avoid taking it with calcium-rich foods or beverages [NIH ODS]. Always store iron supplements out of reach of children, as accidental overdose is dangerous.
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