NOW Elderberry & Zinc
Brand: NOW · Form: LOZENGE [E0174] On Market
Our assessment
The evidence shows that this product combines two distinct ingredients, but the available data on its specific formulation is limited. For the ingredient calcium, which is included in the product, the data confirms its role in supporting bone density and nerve signaling [NIH ODS]. However, we cannot verify the exact dosage of each ingredient in this specific supplement from the data provided.
How it works
Think of calcium as a key structural component — it supports bone mineralization and helps your muscles relax after contraction [NIH ODS]. This mineral also plays a role in transmitting nerve signals throughout your body. The specific mechanisms for other ingredients in this product are not available in the provided data.
Safety profile
FDA received 592,059 total adverse event reports across all supplements. For the calcium component specifically, high intakes may increase the risk of heart disease and prostate cancer [NIH ODS]. Side effects from excessive calcium include constipation, nausea, weight loss, extreme tiredness, frequent urination, and abnormal heart rhythms [NIH ODS]. Calcium can also reduce the absorption of certain medications, including bisphosphonates and some antibiotics [NIH ODS].
Our recommendation
Data not available for a specific dosage recommendation for this product. We advise you to consult your healthcare provider before starting any new supplement, especially if you take medications that may interact with calcium. Check the product label for exact ingredient amounts and follow the manufacturer's suggested use.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | NOW |
|---|---|
| Serving Size | |
| Contents | 90.0 Lozenge(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