The Vitamin Shoppe D3 25 mcg (1000 IU)
Brand: The Vitamin Shoppe · Form: SOFTGEL CAPSULE [E0161] On Market
Our assessment
The evidence shows that Vitamin Shoppe D3 25 mcg (1000 IU) is a straightforward vitamin D supplement. Our assessment: vitamin D supports bone health and immune function, but you should be aware of how it interacts with calcium. Data for the specific ingredient calcium indicates it is essential for bone mineralization and neuromuscular relaxation [NIH ODS]. However, high calcium intakes might increase the risk of heart disease and prostate cancer [NIH ODS].
How it works
Think of vitamin D as a master regulator that helps your body absorb calcium for strong bones. Calcium itself works through bone mineralization, supporting bone density and mineral deposition, and also aids in neuromuscular relaxation, helping your muscles and nerves signal properly [NIH ODS].
Safety profile
FDA received 592,059 total adverse event reports across all supplement categories. 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 [NIH ODS]. Calcium can also reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
Start with one 25 mcg (1000 IU) softgel daily. If you take other medications, separate your calcium intake by at least two hours. Data not available on specific side effect reports for this product. Always check with your healthcare provider before starting a new supplement, especially if you have kidney issues or take prescription medications [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | The Vitamin Shoppe |
|---|---|
| Serving Size | |
| Contents | 100.0 Softgel(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