After reviewing the sources, there is no direct evidence to suggest that avocado affects Lipitor absorption. Lipitor is a medication used to lower cholesterol levels, and it works by inhibiting the enzyme responsible for producing cholesterol in the liver. On the other hand, avocado is a fruit that is known to have heart-healthy benefits and can help lower cholesterol levels [2]. However, there is no evidence to suggest that consuming avocado can interfere with Lipitor's mechanism of action or its absorption in the body.

It is important to note that some foods, such as grapefruit, can interact with Lipitor and affect its absorption. Grapefruit contains compounds that can inhibit the same enzyme that Lipitor targets, leading to higher levels of the medication in the body and potentially increasing the risk of side effects [1]. Therefore, it is recommended to avoid consuming grapefruit or grapefruit juice while taking Lipitor.

In summary, there is no evidence to suggest that avocado affects Lipitor absorption. However, patients taking Lipitor should be aware of potential food interactions and should consult with their healthcare provider or pharmacist if they have any concerns.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/cholesterol/art-20045192
[3] https://www.healthline.com/health/high-cholesterol/avocado-and-cholesterol