NutraBio Zinc Gluconate 50 mg
Brand: NutraBio · Form: CAPSULE [E0159] On Market
Our assessment
Our assessment: This product contains 50 mg of zinc gluconate. While zinc is an essential mineral, the evidence shows that 50 mg is significantly above the Recommended Dietary Allowance (RDA) of 11 mg for men and 8 mg for women. For you, this is a high-dose supplement that should be approached with caution. Data on the specific benefits of this exact dose for general health is limited, and the risk of adverse effects increases at this level [NIH ODS].
How it works
Zinc is a critical trace mineral that supports over 300 enzymes in your body. It plays a key role in immune function, protein synthesis, wound healing, DNA synthesis, and cell division [NIH ODS]. The calcium data provided indicates that minerals like calcium support bone mineralization and neuromuscular relaxation through similar ionic mechanisms, though zinc and calcium have distinct roles [NIH ODS].
Safety profile
Safety data from the FDA shows a total of 592,059 adverse event reports across all supplements, though specific reports for this product are not separated. High zinc intake — especially at 50 mg — can cause nausea, vomiting, loss of appetite, stomach cramps, diarrhea, and headaches. Over time, chronic use can lead to copper deficiency, which may cause neurological problems and weakened immunity. Taking zinc with food can reduce stomach upset, but may also lower absorption [FDA data] [NIH ODS].
Our recommendation
Our recommendation: For most adults, a daily zinc intake of 8-11 mg is sufficient. We suggest you do not take this 50 mg supplement daily unless advised by your doctor for a specific condition. If you choose to use it, consider taking it only a few times per week or splitting the capsule. Be aware that calcium supplements can reduce the absorption of medications like tetracycline antibiotics and levothyroxine, and similar interactions may apply to high-dose zinc [NIH ODS]. We recommend discussing this with your healthcare provider before starting [FDA data].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | NutraBio |
|---|---|
| Serving Size | |
| Contents | 120.0 V-Cap(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