Nature's Way Iron 18 mg
Brand: Nature's Way · Form: CAPSULE [E0159] On Market
Our assessment
The evidence shows that while calcium is essential for bone health, you should approach this supplement with caution. Data on the specific product Nature's Way Iron 18 mg is not available, so our assessment focuses on the ingredient calcium. High calcium intakes from supplements may increase the risk of heart disease and prostate cancer, according to some research [NIH ODS].
How it works
Think of calcium as a structural builder for your bones — it supports bone density and mineral deposition through a process called bone mineralization. It also plays a key role in neuromuscular relaxation, helping your muscles relax and your nerves signal properly [NIH ODS].
Safety profile
FDA has received a total of 592,059 adverse event reports across all supplements. For calcium specifically, 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 [FDA data] [NIH ODS]. Calcium can also reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
We recommend you prioritize calcium from food sources before turning to supplements. If you do use a calcium supplement, take it separately from other medications to avoid absorption issues. Data for the specific Nature's Way Iron 18 mg product is not available, so consult your healthcare provider for personalized guidance [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Nature's Way |
|---|---|
| Serving Size | |
| Contents | 100.0 Capsule(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