Product Label

Douglas Laboratories Zinc Picolinate

Brand: Douglas Laboratories · Form: TABLET [E0155]

Our assessment

Our assessment: Based on the data provided, this product contains the ingredient calcium, which is a mineral essential for bone health. The evidence shows that calcium supports bone mineralization and neuromuscular relaxation [NIH ODS]. However, you should be aware that there are significant safety considerations associated with calcium supplementation.

How it works

Think of calcium as a structural building block for your skeleton. It works through bone mineralization to support bone density and mineral deposition. Additionally, it plays a role in neuromuscular relaxation, which helps support muscle relaxation and nerve signaling [NIH ODS].

Safety profile

FDA received a total of 592,059 adverse event reports across all supplement categories. For calcium specifically, high intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. High levels of calcium in the blood and urine can cause poor muscle tone, poor kidney function, low phosphate levels, constipation, nausea, weight loss, extreme tiredness, frequent need to urinate, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS]. Calcium can also reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].

Our recommendation

Our recommendation: Before starting calcium supplements, you should talk to your doctor about your individual needs, especially if you take any medications. Because of the potential risks associated with high calcium intake, do not exceed recommended dosages without medical supervision [NIH ODS]. Data on the specific zinc picolinate ingredient in this product is not available.

AI-assisted analysis. Data sourced from NIH DSLD.

Supplement Facts

BrandDouglas Laboratories
Serving Size
Contents100.0 Tablet(s)
Market StatusOff 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

Original Label

View Full DSLD Label (PDF)

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