Kirkland Signature Vitamin D3 2000 IU
Brand: Kirkland Signature · Form: SOFTGEL CAPSULE [E0161]
Our assessment
The evidence shows that Kirkland Signature Vitamin D3 2000 IU is a straightforward vitamin D supplement. For most adults, 2000 IU daily is a common maintenance dose, but we cannot confirm the specific benefits or exact dosing recommendations for this product as the data provided does not include vitamin D studies or specific vitamin D health claims [Data not available].
How it works
Vitamin D3 works by helping your body absorb calcium, which is critical for bone health. The provided data on calcium shows it supports bone mineralization and neuromuscular relaxation [NIH ODS]. However, no specific mechanism data for vitamin D itself was provided in this dataset.
Safety profile
FDA received a total of 592,059 adverse event reports across all supplement categories. Based on the calcium data provided, high levels can cause poor muscle tone, constipation, nausea, weight loss, extreme tiredness, and abnormal heart rhythms [FDA data] [NIH ODS]. Side effect report counts specific to this product are not available.
Our recommendation
If you choose to take 2000 IU of vitamin D3, be aware that calcium supplements can reduce the absorption of medications including bisphosphonates, tetracycline antibiotics, and levothyroxine [NIH ODS]. Data on specific benefits or risks for this exact product is not available, so consult your healthcare provider before starting.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Kirkland Signature |
|---|---|
| Serving Size | |
| Contents | 600.0 Softgel(s) |
| Market Status | Off 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