Lipitor is a medication used to treat high cholesterol levels. While taking Lipitor, there are some foods that should be avoided. According to Everyday Health [2], it is recommended to avoid grapefruit and grapefruit juice as it can increase the level of Lipitor in the bloodstream, which can cause side effects. Additionally, it is recommended to avoid high-fat foods, such as fried foods, fatty meats, and full-fat dairy products, as they can increase cholesterol levels. It is also important to limit alcohol consumption as it can increase the risk of liver damage. Renown Health [3] recommends avoiding foods high in saturated and trans fats, such as processed foods, fried foods, and baked goods, as they can increase cholesterol levels. It is also recommended to limit sugar intake and choose whole grains, fruits, and vegetables instead. Finally, Drug Patent Watch [1] advises avoiding foods high in cholesterol, such as egg yolks, liver, and other organ meats, as they can contribute to high cholesterol levels. It is important to follow a healthy diet and lifestyle while taking Lipitor to achieve the best results.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.everydayhealth.com/drugs/lipitor
[3] https://www.renown.org/blog/foods-to-avoid-when-taking-heart-medications