Rugby Zinc
Brand: Rugby · Form: TABLET [E0155]
Our assessment
The evidence shows that the Rugby Zinc product you have is a straightforward zinc supplement. For general immune support, zinc is a well-regarded mineral, but we have specific data on calcium from the National Institutes of Health that applies to mineral supplementation broadly. Our assessment is that while this product provides zinc, you should be aware of how minerals like calcium interact with medications and the body [NIH ODS].
How it works
Think of zinc as a cellular workhorse — it supports immune cell function and is essential for growth and development. The data provided focuses on calcium, which acts as a master regulator for bone mineralization and neuromuscular relaxation, helping your muscles relax and nerves signal properly [NIH ODS]. These mechanisms highlight how critical mineral balance is for your body's daily functions.
Safety profile
Data not available on adverse events specifically for zinc. The FDA has received a total of 592,059 adverse event reports across all supplements. For calcium, high intakes may increase the risk of heart disease and prostate cancer, and can cause symptoms like constipation, nausea, weight loss, extreme tiredness, and abnormal heart rhythms [NIH ODS]. Calcium can also reduce absorption of medications including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Start by taking this zinc supplement with food to minimize stomach upset. Because mineral supplements can interact with medications, take this product at least two hours apart from any prescription drugs you use. Always stick to the dose on the label — more is not better. If you take thyroid medication or antibiotics, consult your pharmacist about timing [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Rugby |
|---|---|
| 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