Protein absorption is not directly affected by the use of Lipitor (atorvastatin), a medication commonly prescribed to lower cholesterol levels. Lipitor primarily works by inhibiting an enzyme involved in the production of cholesterol in the liver. While some studies have suggested potential interactions between statins like Lipitor and certain nutrients, such as coenzyme Q10, there is limited evidence to suggest a direct impact on protein absorption [2][3]. It is important to consult with a healthcare provider for personalized advice on managing any potential interactions between medications like Lipitor and nutrient absorption.

Sources:
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2949584/
[3] https://pubmed.ncbi.nlm.nih.gov/14531725/