Based on the available information, it is unlikely that a healthy diet alone can completely replace the cholesterol reduction effect of Lipitor, a medication commonly prescribed to manage high cholesterol levels.

Lipitor, also known as atorvastatin, is a type of drug called a statin, which works by blocking a substance your body needs to make cholesterol [${3}]. This helps reduce the amount of cholesterol in the blood, thereby decreasing the risk of heart attack and stroke.

While a healthy diet is a crucial part of managing high cholesterol, it may not be enough to achieve the same level of cholesterol reduction as Lipitor. The Mayo Clinic states that, while dietary changes are the first line of defense against high cholesterol, "for some people, diet and exercise alone aren't enough" [${2}].

Moreover, the American College of Cardiology and the American Heart Association recommend statins as a first-line treatment for people with elevated cholesterol levels, particularly those who have other risk factors for heart disease [${3}].

In conclusion, while a healthy diet is a crucial component of managing high cholesterol, it may not be sufficient to replace the cholesterol reduction effect of Lipitor. It's important to consult with a healthcare provider to determine the best course of treatment.

Sources:
[1] - <https://www.drugpatentwatch.com/p/tradename/LIPITOR>
[2] - <https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/statins/art-20045772>
[3] - <https://www.uptodate.com/contents/high-cholesterol-and-lipid-treatment-options-beyond-the-basics/print>