Cooper Complete Iron Ferronyl Prolonged Release
Brand: Cooper Complete · Form: TABLET [E0155]
Our assessment
The evidence shows that this product is a calcium supplement, not an iron supplement as the name might suggest. Calcium is essential for bone health, but the data highlights significant safety considerations. Our assessment: you should approach this supplement with caution, especially if you are taking other medications, and prioritize getting calcium from food sources first [NIH ODS].
How it works
Think of calcium as a structural building block for your skeleton. It works by supporting bone mineralization and density, and it also plays a role in neuromuscular relaxation — helping your muscles relax and your nerves signal properly [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. 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 [FDA data] [NIH ODS]. Calcium can also reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Data not available for specific side effect report counts for this ingredient alone.
Our recommendation
Start by checking your total daily calcium intake from food. Most adults need 1,000 to 1,200 mg per day from all sources. If you take this supplement, take it separately from any prescription medications by at least two hours. Do not exceed the tolerable upper intake level without a healthcare provider's guidance [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Cooper Complete |
|---|---|
| Serving Size | |
| Contents | 60.0 Tablet(s) |
| Market Status | Off 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