Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the body. According to the sources provided, it is safe to take Lipitor with or without food [2][3]. However, the NHS website recommends taking it at the same time every day, either with or without food, to help you remember to take it regularly [2]. Additionally, it is important to follow the instructions of your healthcare provider and read the medication label carefully to ensure proper usage [1][3]. It is also recommended to avoid consuming grapefruit or grapefruit juice while taking Lipitor, as it can increase the risk of side effects [1]. As with any medication, it is important to discuss any concerns or questions with your healthcare provider.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.nhs.uk/medicines/atorvastatin/how-and-when-to-take-atorvastatin/
[3] https://www.drugs.com/medical-answers/eat-food-taking-atorvastatin-3565628/