Nature's Way Calcium Mag & D Complex
Brand: Nature's Way · Form: CAPSULE [E0159] On Market
Our assessment
The evidence shows that Nature's Way Calcium Mag & D Complex provides ingredients with well-documented roles in bone health. However, the specific dosages of calcium, magnesium, and vitamin D in this product are not provided in the data, which limits our ability to give precise dosing advice. Our assessment is that calcium is the primary ingredient of concern, and you need to be mindful of your total daily intake from all sources.
How it works
Think of calcium as a key building block for your bones. It supports bone density and mineral deposition, and it also plays a role in neuromuscular relaxation and nerve signaling [NIH ODS]. This means the supplement is designed to support your skeletal structure and general nerve and muscle function.
Safety profile
FDA received 592,059 total adverse event reports for products in this category. For the calcium component specifically, side effects from very high intake include constipation, nausea, weight loss, extreme tiredness, and abnormal heart rhythms [NIH ODS] [FDA data]. Some research also suggests that high calcium intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. You should be aware that calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, and levothyroxine [NIH ODS].
Our recommendation
Do not take this supplement without first checking your total daily calcium intake from food and other supplements. If you take any of the medications listed (e.g., thyroid medication or antibiotics), take this supplement at a separate time. For most adults, the goal is to meet, but not greatly exceed, the daily calcium recommendation. Data not available on the specific amounts of magnesium and vitamin D in this product, so consult with your healthcare provider to ensure this is the right balance for you.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Nature's Way |
|---|---|
| Serving Size | |
| Contents | 250.0 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