GNC Gentlesorb Iron
Brand: GNC · Form: CAPSULE [E0159]
Our assessment
The evidence shows that calcium is essential for bone health, but the data also highlights important risks. Based on the available information, we cannot assess GNC Gentlesorb Iron specifically because ingredient data for this product is not available in our provided sources. However, for calcium as an ingredient, our assessment is that you should be cautious with high-dose supplementation due to potential serious side effects [NIH ODS].
How it works
Think of calcium as a structural builder and messenger for your body. It supports bone mineralization, helping to maintain bone density and mineral deposition. It also plays a role in neuromuscular relaxation, supporting muscle relaxation and nerve signaling [NIH ODS].
Safety profile
FDA received a total of 592,059 adverse event reports across all products in this category. For calcium specifically, high intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. High levels of calcium in the blood and urine can cause poor muscle tone, poor kidney function, low phosphate levels, constipation, nausea, weight loss, extreme tiredness, frequent need to urinate, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS]. Additionally, calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Given the potential for serious side effects and medication interactions, we recommend you only take calcium supplements under the guidance of a healthcare professional. Data not available for GNC Gentlesorb Iron specifically. For general calcium use, discuss your diet and current medications with your doctor to determine if supplementation is safe and necessary for you [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | GNC |
|---|---|
| Serving Size | |
| Contents | 90.0 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