Lipitor is a brand name for the drug atorvastatin, which is used to lower cholesterol levels in the body. While taking Lipitor, it is important to be mindful of certain fruits that may interact with the medication. Grapefruit and grapefruit juice should be avoided as they contain compounds that can interfere with the metabolism of Lipitor, leading to an increase in its concentration in the bloodstream and potentially causing side effects [2][3]. Other citrus fruits, such as oranges and lemons, do not have the same effect and can be safely consumed while taking Lipitor [3]. It is also recommended to avoid consuming large amounts of pomegranate and pomelo, as they may have similar effects to grapefruit [2]. As always, it is important to consult with a healthcare provider before making any significant changes to your diet or medication regimen [2][3].

Sources:
[2] https://www.renown.org/blog/foods-to-avoid-when-taking-heart-medications
[3] https://www.healthgrades.com/right-care/cholesterol/what-foods-to-avoid-while-taking-atorvastatin