Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the body [2]. According to Drug Patent Watch [1], Lipitor works by blocking an enzyme in the liver that produces cholesterol. By doing so, it can reduce the amount of LDL (bad) cholesterol in the bloodstream and increase the amount of HDL (good) cholesterol.

The effect of Lipitor on low-fat diets is not mentioned in any of the sources provided. However, a study published in the National Center for Biotechnology Information [3] found that a low-fat diet can be effective in reducing cholesterol levels, especially when combined with medication such as atorvastatin. The study showed that participants who followed a low-fat diet and took atorvastatin had a greater reduction in LDL cholesterol levels compared to those who only followed a low-fat diet.

It is important to note that Lipitor is not a substitute for a healthy diet and exercise routine. A low-fat diet can be beneficial in reducing cholesterol levels and improving overall health. However, medication such as Lipitor may be necessary for those with high cholesterol levels that cannot be managed through diet and lifestyle changes alone.

In conclusion, while the effect of Lipitor on low-fat diets is not mentioned in the sources provided, a low-fat diet can be effective in reducing cholesterol levels, especially when combined with medication such as atorvastatin [3]. It is important to consult with a healthcare provider to determine the best course of treatment for high cholesterol levels.

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