Nature's Way Magnesium Complex
Brand: Nature's Way · Form: CAPSULE [E0159] On Market
Our assessment
The evidence shows that this product contains calcium, a mineral essential for bone health, but the data on its benefits and risks are mixed. For most adults, getting calcium from food is preferred, and supplements should be used with caution due to potential side effects and interactions [NIH ODS].
How it works
Calcium acts as a structural building block for your bones and teeth through bone mineralization, and it also supports muscle relaxation and nerve signaling [NIH ODS]. Think of it as a key nutrient that helps your body maintain strong bones and a calm nervous system.
Safety profile
FDA received a total of 592,059 adverse event reports for products in this category. Side effects from high calcium intake include constipation, nausea, weight loss, extreme tiredness, frequent urination, and abnormal heart rhythms [FDA data]. High calcium intakes might also increase the risk of heart disease and prostate cancer [NIH ODS]. Calcium can reduce the absorption of medications such as bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Given the potential risks and medication interactions, we recommend you get your calcium primarily from food sources like dairy, leafy greens, and fortified foods. If you choose a supplement, consult your doctor first, especially if you take any of the listed medications. Data not available on the specific dosage or other ingredients in this product [NIH ODS] [FDA data].
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