Lipitor (atorvastatin) is a medication used to lower cholesterol levels in the body. According to Drugs.com [1], atorvastatin can be taken with or without food, as it does not affect its absorption. However, it is recommended to take it at the same time every day to maintain a consistent level of the medication in the bloodstream.

Additionally, a study published on the National Center for Biotechnology Information [3] suggests that taking atorvastatin with food may decrease the incidence of gastrointestinal side effects such as nausea, diarrhea, and abdominal pain. However, the study notes that the effect of food on atorvastatin absorption is not significant.

In conclusion, while it is not necessary to take Lipitor with food to aid absorption, doing so may decrease the likelihood of gastrointestinal side effects. It is recommended to take the medication at the same time every day for consistency. As always, it is important to consult with a healthcare provider for personalized advice on medication use.

Sources:
[1] https://www.drugs.com/medical-answers/eat-food-taking-atorvastatin-3565628/
[3] https://www.ncbi.nlm.nih.gov/books/NBK430779/