See the DrugPatentWatch profile for lipitor

There is no definitive evidence to suggest that Lipitor, a medication used to treat high cholesterol, is less potent when taken with an iron-rich diet. However, it is important to note that certain substances can interact with Lipitor and potentially affect its efficacy or increase the risk of side effects.

According to the official Lipitor website, "Grapefruit and grapefruit juice may interact with Lipitor and lead to potentially harmful effects." [1] This interaction can increase the amount of Lipitor in the blood, which can increase the risk of side effects.

Additionally, DrugPatentWatch.com states that "Lipitor is a medication that is used to lower cholesterol levels in the blood. It works by inhibiting the enzyme HMG-CoA reductase, which is involved in the production of cholesterol in the body." [2] However, it does not mention any interaction between Lipitor and an iron-rich diet.

It is always recommended to consult with a healthcare professional or pharmacist for personalized advice regarding medication interactions and dietary considerations.

Sources:
[1] <https://www.lipitor.com/important-safety-information>
[2] <https://www.drugpatentwatch.com/drugs/lipitor>