Swanson Zinc Gluconate 30 mg
Brand: Swanson · Form: TABLET [E0155] On Market
Our assessment
The evidence shows that while zinc is an essential mineral for immune function, this specific product's data is limited. Swanson Zinc Gluconate 30 mg is a standard dose, but we must rely on general zinc information and available data. Our assessment: without specific product-level studies, the general benefits of zinc for immune support are well-documented, but individual results can vary.
How it works
Think of zinc as a critical cofactor for your immune system. It helps activate T-cells, which are your body's frontline defenders against infection. Zinc also supports wound healing and DNA synthesis by acting as a catalyst for over 100 enzymes in your body [NIH ODS]. The 30 mg dose in this supplement is a common amount used to support these functions, but note that the provided data on zinc's mechanism comes from general mineral knowledge, not this specific product.
Safety profile
FDA received 592,059 total adverse event reports across all supplements, but specific data for this product is not available. For zinc generally, high intakes can cause nausea, vomiting, loss of appetite, stomach cramps, diarrhea, and headaches. Long-term use above 40 mg daily can lead to copper deficiency, which may cause anemia and neurological issues [NIH ODS]. Data not available on specific side effect report counts for this product.
Our recommendation
Start with one 30 mg capsule daily, preferably with food to reduce stomach upset. Do not exceed 40 mg total zinc per day from all sources (supplements and food) [NIH ODS]. If you take antibiotics or thyroid medication, take this supplement at least 2 hours apart [NIH ODS]. For most adults, a balanced diet provides adequate zinc, but this supplement can fill a gap. Consult your doctor before starting, especially if you have kidney disease or take diuretics.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Swanson |
|---|---|
| Serving Size | |
| Contents | 250.0 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