Lipitor is a brand name for the drug atorvastatin, which is used to lower cholesterol levels in the blood. The sources provided do not mention any specific limit on red meat consumption while taking Lipitor. However, it is important to note that high levels of saturated fat in the diet can increase cholesterol levels in the blood, which can counteract the effects of Lipitor. Therefore, it is generally recommended to limit red meat consumption and opt for lean protein sources such as chicken, fish, and plant-based proteins. The Mayo Clinic [2] advises patients taking atorvastatin to follow a low-fat diet and avoid consuming large amounts of grapefruit juice. Additionally, the University of Rochester Medical Center [3] recommends avoiding high-fat foods and increasing fiber intake while taking atorvastatin. It is important to consult with a healthcare provider or a registered dietitian for personalized dietary recommendations while taking Lipitor.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.mayoclinic.org/drugs-supplements/atorvastatin-oral-route/precautions/drg-20067003?p=1
[3] https://www.urmc.rochester.edu/encyclopedia/content.aspx?contenttypeid=56&contentid=2967