Based on the information provided, there is no direct link found between changing protein sources and Lipitor (atorvastatin) dosage. Lipitor is a statin medication used to treat high cholesterol levels, and its dosage is typically determined by factors such as the patient's age, kidney function, other medical conditions, and the severity of high cholesterol [1].

Protein sources are an essential part of a balanced diet, and they can impact overall health, but there is no evidence to suggest that changing protein sources has a direct effect on Lipitor's efficacy or dosage requirements. However, maintaining a healthy diet, including adequate protein intake, can contribute to better cholesterol management, which may ultimately reduce the need for medication or allow for lower dosages [2].

It is crucial to consult with a healthcare provider or pharmacist for personalized advice on medication management, diet, and lifestyle changes.

Sources:
[1] Mayo Clinic. (2021). Atorvastatin (Oral Route). Retrieved from <https://www.mayoclinic.org/drugs-supplements/atorvastatin-oral-route/description/drg-20063095>
[2] DrugPatentWatch. (2021). Lipitor. Retrieved from <https://www.drugpatentwatch.com/drugs/lipitor>