Based on the information available, it is not explicitly necessary to avoid peanuts while taking Lipitor (atorvastatin), a medication used to treat high cholesterol levels. However, it is always important to consult with a healthcare provider or pharmacist for personalized advice regarding diet and medication interactions [1].

Lipitor, a statin drug, works by reducing the production of cholesterol in the body, which can help prevent heart disease and stroke [1]. While some medications can interact with certain foods, there is no specific mention of peanuts as a food to avoid when taking Lipitor [1].

However, it is important to note that some individuals may have personal allergies or sensitivities to peanuts, which should be taken into account separately from medication interactions [2].

In general, it is recommended to maintain a heart-healthy diet while taking Lipitor, which may include a variety of nuts like peanuts as a source of healthy fats [1].

Sources:
[1] Drugs.com. (2022). Atorvastatin. Retrieved from <https://www.drugs.com/atorvastatin.html>
[2] American College of Allergy, Asthma & Immunology. (n.d.). Peanut Allergy. Retrieved from <https://www.acaai.org/allergies/types/food-allergies/types-food-allergy/peanut-allergy>