Product Label

Douglas Laboratories Amino-Iron

Brand: Douglas Laboratories · Form: TABLET [E0155]

Our assessment

The evidence shows that Douglas Laboratories Amino-Iron is a calcium supplement intended to support bone health. Our assessment is that calcium is a foundational mineral for maintaining bone density, but you need to be aware of both its benefits and its specific risks before adding it to your regimen. The data provided indicates that high calcium intakes might increase the risk of heart disease and prostate cancer, which is a significant consideration [NIH ODS].

How it works

Think of calcium as the building block for your skeleton. It directly supports bone mineralization and mineral deposition, essentially helping to keep your bones dense and strong. Beyond your bones, calcium also plays a role in neuromuscular relaxation, meaning it helps your muscles relax and supports proper nerve signaling throughout your body [NIH ODS].

Safety profile

The FDA has received a total of 592,059 adverse event reports for all products in this category. For calcium specifically, very high levels 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]. You should also know that calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].

Our recommendation

We recommend you be cautious with calcium supplementation. Before starting, consider your total calcium intake from food and other supplements to avoid exceeding safe levels. If you take any of the listed medications, separate your calcium dose by at least two hours or consult your doctor for specific timing. Given the potential risks associated with high intakes, we suggest discussing your individual needs and blood calcium levels with your healthcare provider to determine if this product is appropriate for you [NIH ODS].

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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