NOW Zinc 50 mg
Brand: NOW · Form: TABLET [E0155]
Our assessment
The evidence shows that while this product is labeled as a zinc supplement, the ingredient data we have on file is for calcium. Based on the available data, our assessment is that calcium is a critical mineral for bone health, but the specific benefits of a 50 mg zinc supplement are not supported by the data provided here. You should verify the supplement facts on your bottle to ensure you are getting the intended ingredient [NIH ODS].
How it works
Calcium works as a structural component for your bones and teeth, supporting bone density and mineral deposition. It also plays a key role in neuromuscular relaxation, helping your muscles relax and nerves signal properly [NIH ODS].
Safety profile
The FDA has received a total of 592,059 adverse event reports across all supplements. For calcium specifically, high intakes may 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 urination, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS] [FDA data]. Calcium can also reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Data not available for the specific benefits of 50 mg zinc. For calcium, do not exceed the Tolerable Upper Intake Level without medical supervision. If you are taking any of the medications listed above, separate your calcium dose by at least two hours. Always consult your healthcare provider before starting a new supplement regimen [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | NOW |
|---|---|
| Serving Size | |
| Contents | 100.0 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