NOW Zinc Picolinate 50 mg
Brand: NOW · Form: CAPSULE [E0159] On Market
Our assessment
The evidence shows that zinc is an essential mineral for immune function, but a 50 mg dose of zinc picolinate is significantly higher than the recommended daily allowance. For most adults, the RDA is 8–11 mg per day, and the upper tolerable limit is 40 mg. Taking 50 mg daily may lead to copper deficiency and other side effects over time [NIH ODS].
How it works
Think of zinc as a gatekeeper for your immune system and cellular repair. Zinc picolinate is a form designed for better absorption, helping your body use zinc for wound healing, DNA synthesis, and immune cell function. It works by supporting over 300 enzymes that regulate these critical processes [NIH ODS].
Safety profile
Data not available on specific side effects for this exact product from FDA adverse event reports. The total number of adverse event reports for all products in the database is 592,059 [FDA data]. High zinc intakes, especially above 40 mg daily, can cause nausea, vomiting, loss of appetite, stomach cramps, diarrhea, and headaches. Long-term use at 50 mg may also lead to copper deficiency and reduced immune function [NIH ODS].
Our recommendation
Start with a lower dose, ideally 15–30 mg of zinc daily, and only use 50 mg under medical supervision. Monitor for signs of copper deficiency like numbness or weakness. Do not take this supplement with calcium, as calcium can reduce zinc absorption [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | NOW |
|---|---|
| Serving Size | |
| Contents | 60.0 Veg Capsule(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