GNC Zinc 50 mg
Brand: GNC · Form: TABLET [E0155] On Market
Our assessment
The evidence shows that GNC Zinc 50 mg provides a high dose of zinc. However, you should be aware that this product contains only zinc, not calcium. Based on the data provided for calcium, our assessment is that you should not rely on this product for calcium intake, as it is not listed as an ingredient. For zinc, specific data on efficacy and safety is not available in the provided information [Data not available].
How it works
Think of calcium as a structural builder and signaler — it supports bone mineralization and neuromuscular relaxation [NIH ODS]. If you are taking this product for calcium, please note that it does not contain calcium. For zinc, the mechanism of action is not provided in the data [Data not available].
Safety profile
FDA received a total of 592,059 adverse event reports across all supplement categories [FDA data]. For calcium specifically, high intakes might increase the risk of heart disease and prostate cancer. High levels 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]. For GNC Zinc 50 mg, specific side effect data is not available [Data not available].
Our recommendation
Our recommendation is to confirm that this supplement matches your health goals. If you need zinc, the dose is high, so consult your pharmacist. If you need calcium, this product is not appropriate. Calcium can reduce absorption of bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Always discuss supplements with your healthcare provider to ensure they are safe for you.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | GNC |
|---|---|
| Serving Size | |
| Contents | 250.0 Vegetarian Tablet(s) |
| Market Status | On 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