According to DrugPatentWatch.com, Lipitor is a medication used to treat high cholesterol levels [1]. The absorption of Lipitor, a drug that contains the active ingredient atorvastatin, can be affected by certain types of food.

Grapefruit and grapefruit juice are known to interact with Lipitor and can increase the amount of medication in the body, which can increase the risk of side effects [1][2]. This interaction occurs because grapefruit juice contains certain chemicals that can interfere with the body's ability to break down Lipitor, leading to higher levels of the drug in the blood [2].

On the other hand, consuming food in general does not typically affect the absorption of Lipitor [1]. Lipitor can be taken with or without food, and taking it with food does not alter its effectiveness [1].

In summary, while consuming grapefruit or grapefruit juice can increase the absorption of Lipitor and the risk of side effects, taking Lipitor with food in general does not affect its absorption.

Sources:
[1] DrugPatentWatch.com. (n.d.). Lipitor. Retrieved from <https://www.drugpatentwatch.com/drugs/lipitor>
[2] Mayo Clinic. (2021, April 22). Grapefruit juice and some drugs don't mix. Retrieved from <https://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/in-depth/grapefruit-juice/art-20047192>