Nature's Way Calcium & Vitamin D3 Citrus Flavored
Brand: Nature's Way · Form: LIQUID, SUPPLEMENT FORM [E0165] On Market
Our assessment
The evidence shows that this supplement provides two well-studied nutrients: calcium and vitamin D3. For most adults, calcium supports bone health and nerve function, while vitamin D3 aids calcium absorption [NIH ODS]. However, you should be cautious about your total daily calcium intake from all sources, as high levels carry significant health risks [NIH ODS].
How it works
Think of calcium as a structural building block for your bones and a signal messenger for your nerves and muscles. It works by supporting bone mineralization and helping your muscles relax after contracting [NIH ODS]. Vitamin D3’s role is to help your body absorb that calcium efficiently, making them a complementary pair [NIH ODS].
Safety profile
FDA received a total of 592,059 adverse event reports for this product category. Data for side effects specific to this product is not available. However, high calcium intakes from supplements are linked to risks including constipation, nausea, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS] [FDA data]. You should also be aware that calcium can reduce the absorption of medications such as bisphosphonates, tetracycline antibiotics, and levothyroxine [NIH ODS].
Our recommendation
Start by evaluating your total daily calcium intake from food and other supplements before adding this product. If you take it, space it at least two hours apart from any medications listed as interacting. We recommend you do not exceed the tolerable upper intake level without professional guidance [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Nature's Way |
|---|---|
| Serving Size | |
| Contents | 16.0 fl. Oz. 1.0 Pint(s) 480.0 mL |
| 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