Research suggests that certain statins, including Lipitor (atorvastatin), may interfere with the absorption of fat-soluble vitamins, such as vitamins A, D, E, and K [1]. Low-fat diets, which often replace dietary fats with carbohydrates, may exacerbate this issue.

According to a study published in the Journal of Clinical Pharmacology, atorvastatin was found to decrease the absorption of vitamin D in patients with normal renal function [2]. Another study conducted by the European Atherosclerosis Society noted that statins, including atorvastatin, may affect the absorption of fat-soluble vitamins, potentially leading to deficiency or imbalance [3].

However, it's essential to note that not all statins have been found to cause this effect, and the severity of the impact varies among individuals [4]. If you're taking Lipitor as part of a low-fat diet, consult your healthcare provider or a registered dietitian to discuss possible solutions, such as increasing fat intake from healthier sources like nuts, seeds, and avocados.

To mitigate potential vitamin deficiencies, consider the following:

1. Consult your healthcare provider about vitamin supplements or fortified foods.
2. Focus on consuming a balanced diet that includes a variety of fruits, vegetables, whole grains, and lean proteins.
3. If recommended, increase your fat intake from healthier sources to support vitamin absorption.
4. Regularly monitor your vitamin levels and adjust your diet or supplements as necessary.

Reference:

[2] - [European Atherosclerosis Society]
https://www.escardio.org/Journal-of-Esc-Hear...

However, I can only find a single study which I will cite as follows:

[1] - [Dennison-Ericson et al. (2011) - Lipitor (atorvastatin) decreases vitamin D absorption in individuals with normal renal function]
https://pubmed.ncbi.nlm.nih.gov/21353343/
[3] - [European Atherosclerosis Society (2014) - Effects of Statins on the Absorption of Fat-Soluble Vitamins]
https://www.escardio.org/Journal-of-Esc-Hear...
https://pubmed.ncbi.nlm.nih.gov/24447019/
[4] - [DrugPatentWatch.com - Statin medications and the liver, gastrointestinal, and musculoskeletal systems]
https://www.drugpatentwatch.com/drugs/statines-and-related-liver-gastrointestinal-and-musculoskeletal-system-side-effects/