Sundown Naturals Complete Daily With Iron
Brand: Sundown Naturals · Form: SUPPLEMENT FORM, OTHER [E0172] On Market
Our assessment
The evidence shows that Sundown Naturals Complete Daily With Iron is a multivitamin that includes calcium for bone support. Our assessment: when used as directed, this product can help you meet your daily calcium needs, but you must be aware of the specific safety limits and potential medication interactions associated with calcium [NIH ODS].
How it works
Think of calcium as a structural architect for your skeleton and a signal conductor for your nerves. It supports bone mineralization and density, and is critical for neuromuscular relaxation and nerve signaling [NIH ODS]. This combination of functions is why calcium is essential for both strong bones and proper muscle function.
Safety profile
FDA has received a total of 592,059 adverse event reports for this product category. For the calcium component specifically, the data warns that high intakes might increase the risk of heart disease and prostate cancer. Very high levels of calcium in your 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] [FDA data]. 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
Our recommendation: Take this supplement with food and at least two hours apart from any of the listed medications to avoid absorption issues. Do not take more than the label directs, as exceeding recommended calcium intake carries serious cardiovascular and kidney risks [NIH ODS]. If you are being treated for heart disease, prostate cancer, or kidney problems, speak with your doctor before use. Data on the exact iron content and other ingredients in this specific formulation is not available.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Sundown Naturals |
|---|---|
| Serving Size | |
| Contents | 90.0 Caplet(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