GNC Zinc 30
Brand: GNC · Form: TABLET [E0155]
Our assessment
The evidence shows that this product, GNC Zinc 30, is a straightforward zinc supplement. However, the data provided does not include specific information on zinc itself. All detailed data available relates to calcium, not zinc. For a zinc-specific assessment, data is not available. Based on the calcium data, we can discuss general mineral supplement principles, but you should know this is not a direct analysis of the product's primary ingredient.
How it works
Minerals like calcium play critical roles in the body. Calcium supports bone mineralization and neuromuscular relaxation, helping your muscles relax and nerves signal properly [NIH ODS]. Without specific data on zinc, we cannot describe its mechanism of action here.
Safety profile
The FDA has received a total of 592,059 adverse event reports across all supplements, though specific numbers for this product are not available [FDA data]. Regarding calcium, high intakes might increase the risk of heart disease and prostate cancer. High blood and urine levels of calcium 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]. Side effects specific to zinc are not provided in the data.
Our recommendation
Without specific data on zinc, we cannot make a detailed recommendation for this product. For any supplement, you should always follow the label directions. Be aware that calcium supplements can reduce the absorption of medications like bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. If you are taking any of these medications, consult your doctor before starting a new supplement. Data not available on zinc-specific dosing or interactions.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | GNC |
|---|---|
| Serving Size | |
| Contents | 100.0 Vegetarian Tablet(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