Based on the available information, there is some evidence to suggest that Lipitor, a medication commonly used to treat high cholesterol, may interact with proteins in the body. However, the specific interaction between Lipitor and protein absorption is not directly addressed in the provided sources.

The first source, a drug patent watch page for Lipitor, does not contain any information regarding protein absorption or interactions ([1]).

The second source, a study published in the Journal of Clinical Lipidology, discusses the role of Lipitor in inhibiting HMG-CoA reductase, an enzyme that plays a crucial role in cholesterol production ([2]). While the study does mention that Lipitor can bind to plasma proteins, it does not provide specific information on protein absorption.

The third source, an article published in the Journal of Medicinal Chemistry, provides a more detailed look at the chemical structure and properties of Lipitor ([3]). The article notes that Lipitor is highly bound to plasma proteins, but again, it does not specifically address protein absorption.

In summary, while there is some evidence to suggest that Lipitor interacts with proteins in the body, the available information does not directly address the question of whether Lipitor interacts with protein absorption.

Sources:
[1] <https://www.drugpatentwatch.com/p/tradename/LIPITOR>
[2] <https://pubmed.ncbi.nlm.nih.gov/27103011/>
[3] <https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3334287/>