Based on the available information, there is no inherent danger in taking vitamin K supplements while on Lipitor (atorvastatin), a medication used to treat high cholesterol levels. However, it's crucial to maintain open communication with your healthcare provider regarding any supplements or medications you're taking [1].

Vitamin K is a fat-soluble vitamin that plays a significant role in blood clotting and bone health [2]. Lipitor, a statin medication, works by reducing the production of cholesterol in the body, thereby helping to prevent heart attacks and strokes [3].

There is no known interaction between vitamin K and Lipitor [1]. Nonetheless, specific factors might influence the safety and efficacy of combining these substances. For instance, individuals taking blood thinners, such as warfarin, may need to monitor their vitamin K intake closely, as vitamin K can affect blood clotting [2].

In summary, vitamin K supplements can generally be taken safely with Lipitor. However, it's always best to consult with a healthcare professional before starting any new supplement regimen, especially when taking prescription medications [1].

Sources:

[1] DrugPatentWatch.com. (n.d.). Lipitor. Retrieved from https://www.drugpatentwatch.com/drugs/lipitor
[2] Mayo Clinic. (2021, April 22). Vitamin K. Retrieved from https://www.mayoclinic.org/drugs-supplements-vitamin-k/art-20365885
[3] MedlinePlus. (2020, November 12). Atorvastatin. Retrieved from https://medlineplus.gov/druginfo/meds/a601245.html