GNC Zinc 50 mg
Brand: GNC · Form: TABLET [E0155] On Market
Our assessment
The evidence shows that while calcium is essential for bone health, the specific product you are asking about — GNC Zinc 50 mg — contains zinc, not calcium. Data for the ingredient calcium is provided, but no specific data for zinc is available in this record. For calcium, our assessment is that it is a critical mineral, but you must be cautious with dosing. The data does not provide a specific recommended daily allowance for calcium, so you should consult your healthcare provider for your individual needs [NIH ODS].
How it works
Calcium acts as a master regulator for your body. It supports bone mineralization and density, and it also plays a role in neuromuscular relaxation, helping your muscles relax and nerves signal properly [NIH ODS].
Safety profile
FDA received a total of 592,059 adverse event reports across all supplement categories. For calcium specifically, the data warns that 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] [FDA data].
Our recommendation
For calcium, do not exceed the amount recommended by your healthcare provider. Be aware that calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin. Take calcium supplements at a different time than these medications [NIH ODS]. For the GNC Zinc 50 mg product, data not available for a specific recommendation.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | GNC |
|---|---|
| Serving Size | |
| Contents | 90.0 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