The Vitamin Shoppe Vitamin K1 100 mcg
Brand: The Vitamin Shoppe · Form: TABLET [E0155] On Market
Our assessment
The evidence shows that Vitamin K1 at 100 mcg is a standard, low-dose supplement. The data indicates that the adequate intake (AI) for vitamin K is 90 mcg for women and 120 mcg for men, so this 100 mcg dose is appropriate for most adults [NIH ODS]. No specific clinical studies on this exact product were provided in the data.
How it works
Vitamin K1, also known as phylloquinone, is a key nutrient for blood clotting. Your liver uses vitamin K to produce proteins that help stop bleeding after an injury [NIH ODS]. Beyond clotting, it also supports bone health by helping to activate osteocalcin, a protein that binds calcium to bone tissue [NIH ODS].
Safety profile
Data not available on adverse event reports for this specific product from the FDA data provided. Vitamin K1 is generally considered safe at the 100 mcg dose, with no established tolerable upper intake level [NIH ODS]. However, if you take blood-thinning medications like warfarin, you should not change your vitamin K intake without consulting your doctor, as it can interfere with the medication's effects [NIH ODS].
Our recommendation
For most people, a 100 mcg dose of Vitamin K1 is a safe and effective way to meet your daily needs, particularly if your diet is low in leafy greens. The best approach is to get vitamin K from food sources like spinach, kale, and broccoli, but this supplement is a reliable backup [NIH ODS]. If you have a clotting disorder or take anticoagulants, speak with your healthcare provider before starting this supplement.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | The Vitamin Shoppe |
|---|---|
| Serving Size | |
| Contents | 100.0 Tablet(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