Based on the information available, it is true that consuming dairy products may potentially hinder the cholesterol-lowering ability of Lipitor (atorvastatin), a medication commonly prescribed to manage high cholesterol levels.

Lipitor belongs to a class of drugs known as statins, which work by reducing the production of cholesterol in the body [1]. However, certain foods and substances can affect the efficacy of these medications.

According to DrugPatentWatch.com, a website that provides information on drug patents and pharmaceutical market trends, dairy products contain high levels of saturated fats, which can increase the levels of low-density lipoprotein (LDL), or "bad" cholesterol, in the blood [2]. This can counteract the cholesterol-lowering effects of Lipitor, making it less effective in managing high cholesterol levels.

It is important to note that while dairy products may affect the efficacy of Lipitor, individual responses to the medication and dietary habits can vary. Therefore, it is always recommended to consult with a healthcare provider for personalized advice on managing cholesterol levels and taking Lipitor.

Sources:

1. Mayo Clinic. (2021). High cholesterol. <https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/symptoms-causes/syc-20350800>.
2. DrugPatentWatch.com. (2022). Lipitor (atorvastatin) Drug Profile. <https://www.drugpatentwatch.com/drugs/lipitor>.