NOW Zinc Picolinate 50 mg
Brand: NOW · Form: CAPSULE [E0159] On Market
Our assessment
The evidence shows that zinc is a critical mineral for immune function, but a 50 mg dose is significantly higher than the recommended daily allowance. For most adults, the RDA is 8-11 mg per day, and the tolerable upper intake level is 40 mg. A 50 mg supplement exceeds this upper limit and should only be used under professional supervision for a specific, short-term therapeutic need. Data not available on the exact number of adverse events specific to this product.
How it works
Think of zinc as a gatekeeper for your immune system. It supports the development and function of immune cells, helps with wound healing, and is essential for DNA synthesis and cell division. Zinc picolinate is a form that some research suggests is well-absorbed by the body, but long-term use of 50 mg daily is not generally recommended due to safety concerns [NIH ODS].
Safety profile
FDA received a total of 592,059 adverse event reports across all supplements. For zinc specifically, side effects from high doses include nausea, vomiting, loss of appetite, stomach cramps, diarrhea, and headaches. Taking 50 mg daily can also lead to copper deficiency, which can cause neurological issues and anemia. Chronic high intake may also suppress immune function rather than support it [FDA data] [NIH ODS].
Our recommendation
Our assessment: Do not take 50 mg of zinc daily unless directed by a healthcare provider for a short-term condition. For general health, a standard multivitamin or a 15-25 mg zinc supplement is safer and more appropriate. If you choose to take this product, do not take it for more than a few weeks, and ensure you are also getting enough copper from your diet [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | NOW |
|---|---|
| Serving Size | |
| Contents | 120.0 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