GNC Zinc 50
Brand: GNC · Form: TABLET [E0155] On Market
Our assessment
The evidence shows that while calcium is essential for bone health, GNC Zinc 50 is a zinc supplement, not a calcium product. Based on the data provided, we cannot assess the benefits of this specific zinc product. For calcium specifically, our assessment is that it is a critical mineral for bone mineralization and neuromuscular function [NIH ODS].
How it works
Think of calcium as a building block for your skeleton. It supports bone density and mineral deposition, and it is also vital for muscle relaxation and nerve signaling throughout your body [NIH ODS].
Safety profile
Data not available for GNC Zinc 50 specifically. For calcium, high intakes may 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]. The FDA has received a total of 592,059 adverse event reports across all supplements, but this number is not specific to this product [FDA data]. Calcium can reduce the absorption of bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Because the data provided does not include information on zinc, we cannot make a recommendation for GNC Zinc 50. For calcium, the data advises caution with high intakes. Do not exceed the recommended daily intake without medical supervision, and take calcium supplements separately from the medications listed above [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | GNC |
|---|---|
| Serving Size | |
| Contents | 100.0 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