Lipitor is a prescription medication that belongs to a class of drugs known as statins. It is used to lower cholesterol levels in the blood. According to the drug patent watch [1], Lipitor works by inhibiting an enzyme in the liver that is responsible for producing cholesterol. This results in a decrease in the amount of cholesterol produced by the liver, which in turn lowers the levels of LDL (bad) cholesterol in the blood.

A study published in the National Center for Biotechnology Information [2] revealed that statins like Lipitor can be effective in reducing cholesterol levels in individuals on low-fat diets. The study found that combining a low-fat diet with statin therapy resulted in a greater reduction in LDL cholesterol levels than either intervention alone. Additionally, the study showed that the effects of statin therapy were more pronounced in individuals with higher baseline cholesterol levels.

WebMD [3] notes that Lipitor is typically taken once a day, with or without food. The dosage of Lipitor may vary depending on the individual's cholesterol levels and response to treatment. It is important to follow the dosage instructions provided by the prescribing physician.

In conclusion, Lipitor can effectively lower cholesterol levels in individuals on low-fat diets by inhibiting the liver's production of cholesterol. Combining a low-fat diet with statin therapy can result in a greater reduction in LDL cholesterol levels than either intervention alone. It is important to follow the dosage instructions provided by the prescribing physician when taking Lipitor.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1312230/
[3] https://www.webmd.com/drugs/2/drug-3330/lipitor-oral/details