Lipitor is a medication used to lower cholesterol levels in the blood. According to the provided sources, there is no specific amount of fat that is considered a "fatty meal" for Lipitor. However, it is recommended to avoid consuming high-fat meals while taking Lipitor to ensure the medication's effectiveness.

One of the sources [1] provides information about the active ingredient in Lipitor, which is atorvastatin calcium. The source does not mention any specific amount of fat that is considered a "fatty meal" for Lipitor. Instead, it recommends avoiding consuming large amounts of alcohol and grapefruit juice while taking the medication.

Another source [2] discusses the potential risks of consuming high-fat meals while taking statins, including Lipitor. The article states that consuming high-fat meals can reduce the effectiveness of the medication and increase the risk of side effects. However, the article does not provide a specific amount of fat that is considered a "fatty meal" for Lipitor.

A third source [3] discusses the potential health risks of consuming a single high-fat meal. The article states that consuming a meal high in fat can increase the risk of heart attack and other cardiovascular problems. However, the article does not provide information specific to Lipitor.

In conclusion, while the provided sources do not provide a specific amount of fat that is considered a "fatty meal" for Lipitor, it is recommended to avoid consuming high-fat meals while taking the medication to ensure its effectiveness. Patients should consult with their healthcare provider for specific dietary recommendations while taking Lipitor.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.reuters.com/article/us-burger-statin/burger-and-a-statin-to-go-or-hold-that-please-idUSTRE67C2GE20100813
[3] https://www.pritikin.com/one-fatty-meal-cause-heart-attack