Lipitor is a brand name for the drug atorvastatin, which is used to lower cholesterol levels in the body [1]. According to the FDA, mixing medications and dietary supplements can be dangerous and can affect how the body absorbs certain nutrients [2]. Therefore, it is important to consult a healthcare provider before taking any supplements while on Lipitor.

One supplement that may be affected by Lipitor is vitamin D. According to the Mayo Clinic, taking Lipitor with vitamin D supplements may decrease the absorption of vitamin D in the body [3]. This is because Lipitor can reduce the amount of cholesterol in the body, which is necessary for the absorption of vitamin D. Therefore, individuals taking Lipitor should talk to their healthcare provider about the appropriate dose of vitamin D supplements to take and how to space out the timing of taking Lipitor and vitamin D supplements.

In conclusion, Lipitor can affect the absorption of certain supplements, including vitamin D. Therefore, individuals taking Lipitor should consult their healthcare provider before taking any supplements to ensure they are taking them safely and effectively [1][2][3].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.fda.gov/consumers/consumer-updates/mixing-medications-and-dietary-supplements-can-endanger-your-health
[3] https://www.mayoclinic.org/drugs-supplements-vitamin-d/art-20363792