Thorne Research Zinc Picolinate

Our assessment

Our assessment: Zinc picolinate is a well-absorbed form of zinc that can help you meet your daily needs. The data confirms that zinc is essential for immune function, and the picolinate form may be better absorbed than other types [NIH ODS].

How it works

Think of zinc as a gatekeeper for your immune system — it helps your body fight off bacteria and viruses. Zinc also supports wound healing and is involved in DNA synthesis [NIH ODS].

Safety profile

Data not available on FDA adverse event reports for this specific product. The National Institutes of Health notes that the upper limit for zinc is 40 mg daily for adults, and taking too much can cause nausea, headaches, and interfere with copper absorption [NIH ODS].

Our recommendation

Start with one capsule daily, which provides a standard dose. Take it with food to avoid stomach upset. Do not exceed the recommended dose, and avoid taking it at the same time as high-dose calcium or iron supplements [NIH ODS].

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