Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the blood. According to the FDA-approved label for Lipitor, it is indicated for use in conjunction with a low-fat diet to reduce elevated total cholesterol, LDL cholesterol, apolipoprotein B, and triglycerides, and to increase HDL cholesterol [2]. Therefore, a low-fat diet is an essential component of the treatment plan for individuals taking Lipitor. However, it is important to note that the effectiveness of Lipitor may vary from person to person and depends on several factors, including age, gender, genetics, and overall health [3]. It is also important to follow the dosage instructions provided by the healthcare provider and not to stop taking Lipitor without consulting a doctor. Additionally, patients taking Lipitor should be monitored for potential side effects, such as muscle pain, weakness, and liver problems [2].

Sources:
[2] https://www.accessdata.fda.gov/drugsatfda_docs/label/2009/020702s056lbl.pdf
[3] https://www.webmd.com/drugs/2/drug-3330/lipitor-oral/details