Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the body. It works by blocking the enzyme responsible for producing cholesterol in the liver [2]. According to the sources provided, there is no evidence to suggest that Lipitor would have any negative effects on a low-fat diet.

However, it is important to note that a low-fat diet is often recommended for individuals who are taking Lipitor. This is because a diet low in saturated and trans fats can help to further reduce cholesterol levels in the body and improve overall heart health [3]. In fact, a study published in the Journal of the American Medical Association found that combining a low-fat diet with Lipitor resulted in greater reductions in LDL cholesterol levels than Lipitor alone [1].

It is important to follow a healthy diet and exercise regimen while taking Lipitor to achieve the best results. As with any medication, it is important to consult with a healthcare provider before making any changes to your diet or exercise routine [2].

Sources:
[1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1312230/
[2] https://www.webmd.com/drugs/2/drug-3330/lipitor-oral/details
[3] https://www.drugpatentwatch.com/p/tradename/LIPITOR