Nature's Way Calcium Complex
Brand: Nature's Way · Form: CAPSULE [E0159] On Market
Our assessment
The evidence shows that calcium is a foundational mineral for bone health, but it requires careful management. For the Nature's Way Calcium Complex, we assess that it can be a useful tool to help you meet your daily needs, but you must be mindful of total intake from all sources. The data confirms that calcium supports bone mineralization and neuromuscular relaxation [NIH ODS].
How it works
Think of calcium as the structural backbone for your bones and a key regulator for your muscles and nerves. It works by supporting bone density and mineral deposition, which keeps your skeleton strong. It also promotes neuromuscular relaxation, helping your muscles relax and your nerves signal properly after activity [NIH ODS].
Safety profile
FDA received 592,059 total adverse event reports for calcium-containing products. Important side effects include constipation, nausea, weight loss, extreme tiredness, and frequent need to urinate. High levels in the blood can lead to poor muscle tone, poor kidney function, low phosphate levels, abnormal heart rhythms, and a high risk of death from heart disease. Some research also suggests a possible increased risk of heart disease and prostate cancer with high intakes [FDA data] [NIH ODS].
Our recommendation
Start by assessing your total daily calcium intake from food and other supplements. Do not exceed the tolerable upper intake level unless directed by your doctor. Take this supplement separately from medications like bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin, as calcium can reduce their absorption [NIH ODS]. Data not available for specific dosing of this product, so follow the label instructions.
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