Avocado is not listed as a food to avoid while taking Lipitor, a medication used to lower cholesterol levels [2]. However, it is recommended to consult with a healthcare provider before making any significant changes to your diet while taking Lipitor [2][3]. While avocado is a healthy food, it is high in fat, and a diet high in fat can interfere with the effectiveness of Lipitor [3]. Additionally, grapefruit and grapefruit juice should be avoided while taking Lipitor as it can increase the risk of side effects [2][3]. Other foods that may interact with Lipitor include alcohol, fatty foods, and foods high in sugar [3]. It is important to follow a healthy diet while taking Lipitor to maximize its effectiveness in lowering cholesterol levels and reducing the risk of heart disease [3].

Sources:
[2] "Lipitor Oral: Interactions with Other Medication," WebMD, accessed September 15, 2021, https://www.webmd.com/drugs/2/drug-3330/lipitor-oral/details/list-interaction-food.
[3] "Don't Eat These Foods If You Take Blood Thinners or Statins," Guthrie, accessed September 15, 2021, https://www.guthrie.org/blog/dont-eat-these-foods-if-you-take-blood-thinners-or-statins.